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2018 NHA TRANG CONFERENCE
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2018 NHA TRANG CONFERENCE
ABSTRACT
February 23-25, 2018
LIBERTY CENTRAL NHA TRANG HOTEL
Nha Trang, Vietnam
Sponsored by
Published and Indexed by
www.cbees.org
2018 NHA TRANG CONFERENCE
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Table of Contents 2018 Nha Trang Conference Introductions 8
Presentation Instructions 9
Keynote Speaker Introductions 10
Brief Schedule for Conference 24
Detailed Schedule for Conference
25
Session 1
Y0006: In-Situ Measurements of Carbon Stable Isotopes Ratio in Karstic Cavesby Ftir Spectroscopy
Ira Litvak, Yaakov Anker and Haim Cohen
27
Y0007: Atom-Transfer Radical Polymerization on the Living Cell Surfaces
Sung Ho Yang
28
Y0009: Asymmetric Michael Addition of 2-Oxochroman-3-Carboxylate Esters to Trans--Nitroolefins for Construction of 3,4-Dihydrocoumarin Derivatives
Hui Jin, Soo Min Cho, Geum-Sook Hwang and Do Hyun Ryu
29
Y0011: Biocompatibility-Related Chemical Modifications of Poly(Propylene Imine) Dendrimers Influence Their Interactions with Coomassie Brilliant Blue Dye
Lukasz Pulaski, Izabela Jatczak-Pawlik, Anna Janaszewska, Dietmar Appelhans and Barbara Klajnert-Maculewicz
30
Y2001: Synthesis and Characterization of Chemically Functionalized Amorphous Silica Nanoparticles Equipped with Uniform Nanopores for Removing Heavy Metal Ions from Wastewater
Eun-Hye Jang and Sungwook Chung
31
Y3001: Effect of CoFe2O4 Content on Structural, Thermal, Magnetic, Electrical and Adsorption Properties of CoFe2O4/Mwcnts Nano-Composites
Mohamed Gaba, N.H. Al-Zahrani, Y.M. A Angari and M.A. Abdel-Fadeel
32
Y3002: Determination of Antioxidant Capacity and Total Polyphenol Content of the Extracts from Three Different Parts of Olive Plant and the Green Production of Iron Nano Particles (GInPs)
Ulker Bakir Ogutveren, Fadime Karaer, Esra Findik and Burcu Kagnicioglu
33
Y3003: Removal of Lead from Water by Electrocoagulation Applying Response Surface Method (RSM) in an Uniquely Designed Rector
Ulker Bakir Ogutveren, Umran Tezcan Un and Nihal Erginel
34
Y3006: Mechanisms of Asymmetric Periodic Patterns in Precipitation of Calcium Phosphatein Hydrogels
Min Kyung Jo and Sung Ho Yang
35
2018 NHA TRANG CONFERENCE
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C3008: Finding the Simple Rule for Diagnosing the Operation Fault of Freezer
Seung Yeoun Choi, Bok Han Kim and Sean Hay Kim
36
Session 2
C0008: Full-Scale Standard Fire Experiment and Numerical Modelling Behaviour of Non-Load Bearing Calcium Silicate Partition Drywall
Ching-Yuan Lin, Yinuo Wang and Ying-Ji Chuang
37
C0011: Synergy Action of Glass Powder and Foaming Additive in Production of Lightweight Cement-Based Materials
Jaroslav Pokorný, Milena Pavlikova, Martina Záleská, Jiří Studnička and Zbyšek Pavlí
38
C0024: The Effects of Carbon Fiber Reinforced Polymer Strengthening on Cylindrical Steel Storage Tanks under Bending Shear Load
Phan Viet Nhut and Yukihiro Matsumoto
39
C0025: Cyclic Loading Tests of Composite Moment Frames Using Octagonal CFTs
Jong Jin Lim and Tae Sung Eom
40
C0027: Study on Mechanical Behavior of Self-Tapping Screws Connection Using Washers in Single-Lapped Glass Fiber Reinforced Plastic Plates by Experiment and Finite Element Analysis
Nguyen Ngoc Duong, Phan Viet Nhut, Chito Satake and Yukihiro Matsumoto
41
C0029: Properties of Portland Cement Type V Mortar Mixed with Ground Rice Husk Ash and Limestone Powder
Burachat Chatveera and Permphon Srinourn
42
C0043: Seismic Strengthening Design and Performance Analysis of an Existing RC Frame
Yong Sun, Xin Chen, Yan-Qing Zhu, Wei-Gen Yu, Jia-Qing Li and Guan-Xing Su
43
C0048: Experimental Investigation on Inelastic Cyclic Behavior of Bracing Member with Wide-Flange Section
Dong-Hyeon Shin and Hyung-Joon Kim
44
C0050: Can Existing Design Codes Be Used to Design Flexural Reinforced Concrete Elements Strengthened with Externally Bonded Novel Materials?
Christos G. Papakonstantinou, Christina Kakae and Nikolaos Gryllakis
45
C0053: Load Rating and Buckling of Circular Concrete-Filled Steel Tube (CFST): Simulation and Experiment
L H Vu, Nguyen Cong Duc, L V Dong, D L Truong, N M T Anh, H Q Hung and P V Hue
46
C0062: Cyclic Behaviour of HPFRCC Coupling Beams with Diagonal Reinforcement
Sang Whan Han and Seung Bum Kim
47
2018 NHA TRANG CONFERENCE
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C0063: Application of HPFRCC on Coupling Beams with Bundled Diagonal Reinforcement
Sang Whan Han, Chang Seok Lee, Kihak Lee and M.S. Shin
48
C3004: Green Tea Extract Inhibits Corrosion of Steel Reinforcing Bars Embedded in Mortar
Ivan Pradipta, Daniel Kong and Joash Tan Ban Lee
49
Session 3
C0044: A Review of Geometry Investigations of Helicoids
Jean Paul Vladimir
51
C0045: Evaluation of Limit State for Pier According to Scour and Peak Ground Acceleration
Minho Kwon, Wooyoung Jung, Donghoon Shin and Kiyoung Kim
52
C0047: Maintenance of Propeller Shaft Using Thermal Wire Arc Spraying
Surachai Numsaraphatnuek
53
C0051: On Consideration Damage in Drilled Composite Laminates Modified by Nanofibers under Three-Point Bending Test
Hamed Saghafi, Ali Gholizadeh, Mahdi Ahmadi Najaf Abadi, Reza Mohammadi and Ali Nikbakht
54
C0059: Support Draft Calculation for a Ramp in the Form of Developable Helicoid
Marina Rynkovskaya
55
C0060: Plastic Deformations Occuring in Shells with Developable Middle Surfaces during Bending
Marina Rynkovskaya
56
C1002: Improve the Properties of Iraqi Bentonite Using Salts
Baydaa Hussain Maula
57
C1003: Developmental Effects of Soil-Pile Design Parameters in Liquefiable Sand
Baydaa Hussain Maula
58
C3001: Empirical Stress Intensity Factor Equations for Cracked Steel Plates Repaired with Double-Sided FRP Patches
Bach Kim Do and Akhrawat Lenwari
59
C3006: Effect of Shrinkage Reducing Admixture on the Strength and Shrinkage of Alkali Activated Cementitious Mortar
Chinh Van Nguyen, P S Mangat and G Jones
60
C3005: An Efficient Method of Finding Stress Solutions in Porous Material under Axial Symmetry
Sergei Alexandrov, E Lyamina and T Nguyen-Thoi
61
2018 NHA TRANG CONFERENCE
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C3009: A Semi-Analytic Stress Solution for Elastic/Plastic FGM Discs Subject to External Pressure
Sergei Alexandrov, S Usov and T Nguyen-Thoi
62
C3002: Fabrication of Activated Charcoal Adsorption Bi2O3/TiO2 Composite Powders and the Study of Their Photocatalytic Activity
Zhifu Wu and Liyun Hu
63
Session 4
C0007: Assessment of Ecosystem Impacts by Engineering Measures Using the Concept of Building with Nature
Chien-Yuan Chen and Cr Ku
64
C0012: Effect of Waste Expanded Polypropylene-Based Aggregate on Mechanical and Thermal Properties of Lightweight Concrete
Martina Záleská, Milena Pavlíková, Jiří Studnička and Zbyšek Pavlík
65
C0016: Thermal Stability of Lightweight Concrete with Incorporated Regranulated Polypropylene Aggregate
Lenka Scheinherrová, Martina Záleská, Milena Pavlíková and Zbyšek Pavlík
66
C0018: Disaster Resilience: A Sustainable Way for Niue
Anthony Freddie and Shenuka de Sylva
67
C0022: The Effects of Windows and Reduced Night Temperature on the Heating Energy Demand in Different Regions of Russia
Zoltan Pásztory, Galina Gorbacheva, Daniel Czimondor, Péter Rébék-Nagy, Victor Sanaev, Stanislav Rykunin, Imre Czupy and Zoltán Börcsök
68
C0023: Tradition, Modernity and Authenticity of Architecture in China and Japan During the 20th Century
Zeyang Yu
69
C0035: BIM for Existing Buildings: Potential Opportunities and Barriers
Md Aslam Hossain and J K W Yeoh
70
C0046: Lock-Brick System for Sustainable and Environment Infrastructure Building Materials
Susilawati Cicilia Laurentia and Indah Wahyuning Tyas
71
C0054: Plant Species Selection Based on Leaf Vibration Experiments
Mengmeng Li and Jian Kang
72
C0055: Agent-Based Simulation on Pedestrian Flow Capacity of Narrow Space
Shi Sun, Cheng Sun and Kai Xing
73
C0056: Thinking about the Contradiction of Space Use of Square Dance in Chinese Cold Cities through Newspaper Reports
Xiaobing Liu, Xiaolong Zhao and Bo Zhang
74
2018 NHA TRANG CONFERENCE
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C0052: Ledras (Ledra Street): Discovering It’s Visible and Invisible Multiple Layers
Gizem Ozturk
75
Session 5
C0017: Performance of Concrete Blended with Inhibitors and Slag Exposed to Chloride Environment
Anita N Borade and B Kondraivendhan
76
C0019: Anticorrosion Effect of Silane Type Surface Penetrants on RC Degraded by Carbonation
Takuya Kondo, Yuka Kadota, Yusuke Kawanishi, Yoshihiko Nakamoto, Katsunori Yokoi and Yuji Yamada
77
C0021: Experimental Study on the Properties of Artificial Lightweight Aggregate Concrete Reinforced with Carpet Waste Fiber
Yanuar Haryanto, Gathot Heri Sudibyo and Nanang Gunawan Wariyatno
78
C0009: Development of Compressed Stabilized Earth Block as an Eco-Friendly and Sustainable Wall Making Material
Chao-Lung Hwang, Mitiku D. Yehualaw and Trong-Phuoc Huynh
79
C0028: Effect of High Loss on Ignition-Fly Ash on Properties of Concrete Fully Immersed in Sulfate Solution
Si-Huy Ngo, Trong-Phuoc Huynh, Thi-Thanh-Tam Le and Thi-Ngoc-Hang Mai
80
C0032: Compressive Strength of Concrete with Sewage Sludge Ash (SSA)
Thevaneyan Krishta David and Sivasan Karan Nair
81
C0033: Flexural Strength of Sewage Sludge Ash (SSA) Concrete
Thevaneyan Krishta David and Sivasan Karan Nair
82
C0034: Modified Pervious Concrete Containing Recycled Asphalt Pavement and Waste Tire Rubber
Thevaneyan Krishta David, RS Chandrasegaran and Sivasan Karan Nair
83
C0037: A Review of Agro-Waste Materials as Partial Replacement of Fine Aggregate in Concrete
Lidia Sommariba Sokolova, Evgeniya Ermakova and Marina Rynkovskaya
84
C0042: Development of an Automatic Crack Inspection System for Concrete Tunnel Lining Based on Computer Vision Technologies
Cuong Nguyen Kim, Kei Kawamura, Masando Shiozaki and Amir Tarighat
85
C0049: Development of Ultra High Performance Concrete and Reactive Powder Concrete with Nanosilica
Rudolf Hela, Lenka Bodnarova and Lukas Rundt
86
C0065: Study on Compressive Strength Prediction on Steam Curing
Nozomi Nakajima, Hiromitsu Koyama, Shin-Ichiro Hashimoto and Shigeyuki Date
87
2018 NHA TRANG CONFERENCE
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Poster Session
C0010: The Effect of Different Heights and Angles of Energy Director on Interface Temperature for Ultrasonic Welding of Thermoplastics
Thang Nguyen Vo and Petr Lenfeld
88
C0026: Structural Performance Evaluation of a Precast PSC Curved Girder Bridge Constructed Using Multi-Tasking Formwork
Sung-Jae Kim, Gi-Ha Eom and Jang-Ho-Jay Kim
89
C0031: TENG Output Enhancement for Wind Energy Harvesting Using Nanocones PDMS
Nghia Dinh Huynh, Wook Kim, Hee Jae Hwang, Kwun-Bum Chung, Dongseob Kim and Dukhyun Choi
90
Y0002: Synthesis of Cyclic Carbonates from Epoxides and CO2 Using Cu(II) Tryptophan MOF as a Catalyst
Gyeong-Seon Jeong, Ga-Hyung Kim, Hee-Chul Woo, Kwang-Sun Huh, Dong-Ok Lim and Dae-Won Park
91
Y0005: KOH-Activation Effect on the Electroactivity of Reduced Graphene Oxide/Fe2O3 Electrodes
Seok Kim, Kyu Suk Hwang and Yongchul Chung
92
Y0008: Steam Reforming of Liquefied Oil Derived from Macro Algae over Ni/Mg/Al Hydrotalcite-Type Catalyst
Yong Beom Park, Hankwon Lim, Hee Ju Ahn and Hee-Chul Woo
93
Y2002: Development of Improved Gene Expression Cassette for Glycerol Dehydratase Enzyme in Pseudomonas Denitrificans
Nam Hoai Nguyen, Thuan Vo Phu Nguyen, Trinh Thi Nguyen, Suman Lama and Sunghoon Park
94
One Day Visit 95
Conference Venue 97
Note 98
Feedback Information 99
2018 NHA TRANG CONFERENCE
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2018 Nha Trang Conference Introductions Welcome to CMS-CBEES 2018 conference in Nha Trang. The conference is held annually with high quality. The objective of the Nha Trang conference is to provide a platform for researchers, engineers, academicians as well as industrial professionals from all over the world to present their research results and development activities in Building Materials and Construction.
2018 3rd International Conference on Building Materials and Construction (ICBMC 2018)
Papers will be published in IOP Conference Series: Materials Science and Engineering (ISSN:
1757-899X), which is indexed by EI Compendex, Scopus, Thomson Reuters (WoS),
Inspec,et al.
Conference website and email: http://www.icbmc.org/; [email protected]
CMS Mission
The mission of HKCBEES Chemistry and Materials Society (CMS) is to meet the engineers and the scholars in the Chemistry and Materials discipline. CMS offers a platform for them to communicate and exchange idea. HKCBEES Chemistry and Materials Society hold annually scheduled conferences and workshops on the Chemistry and Materials related topics, it serves as a forum for idea exchange, networking, information sharing and problem solving for the Chemistry and Materials community. HKCBEES Chemistry and Materials Society play an important role in the academic community.
About HKCBEES
The Hong Kong Chemical, Biological & Environmental Engineering Society (HKCBEES) was founded in 2007. It is an independent and scientific research and development organization. The Service can be traced back to the first work in 1999.
HKCBEES plays an influential role in promoting developments in Chemical, Biological & Environmental Theory and Applications in a wide range of ways. The mission of HKCBEES is to foster and conduct collaborative interdisciplinary research in state-of-the-art methodologies and technologies within its areas of expertise.
Good news! To join in HKCBEES member is free now. Please check the information on the
website: http://www.cbees.org/list-33-1.html if you are interested in. Any question regarding
to membership, please feel free to contact [email protected].
2018 NHA TRANG CONFERENCE
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Presentation Instructions
Instructions for Oral Presentations
Devices Provided by the Conference Organizer:
Laptop Computer (MS Windows Operating System with MS PowerPoint and Adobe Acrobat
Reader)
Digital Projectors and Screen
Laser Sticks
Materials Provided by the Presenters:
PowerPoint or PDF Files (Files should be copied to the Conference laptop at the beginning of
each Session.)
Duration of each Presentation (Tentatively):
Regular Oral Presentation: about 12 Minutes of Presentation and 3 Minutes of Question and
Answer
Keynote Speech: about 30 Minutes of Presentation and 5 Minutes of Question and Answer
We would appreciate if all presenters can adhere strictly to this time limit.
Instructions for Poster Presentations
Materials Provided by the Conference Organizer:
The place to put poster
Materials Provided by the Presenters:
Home-made Posters
Maximum poster size is A1
Load Capacity: Holds up to 0.5 kg
Best Presentation Award One Best Oral Presentation will be selected from each presentation session, and the
Certificate for Best Oral Presentation will be awarded at the end of each session on February
23&24.
Dress Code Please wear formal clothes or national representative of clothing.
2018 NHA TRANG CONFERENCE
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Keynote Speaker Introductions
Keynote Speaker I
Prof. Shen-Ming Chen
National Taipei University of Technology, Taiwan
Dr. Shen-Ming Chen (h-index > 60) received his PhD degrees in chemistry from National
Taiwan University, Taipei, Taiwan. He was a visiting postdoctoral fellow with the Institute of
Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nuremberg, Germany in 1997.
He joined Department of Chemical Engineering, National Taipei Institute of Technology,
Taipei, Taiwan in 1985. He had been an associate professor of Department of Chemical
Engineering, National Taipei Institute of Technology, Taipei, Taiwan from 1991 to 1997.
Since August 1997, he has been a full professor of Department of Chemical Engineering and
Biotechnology, National Taipei University of Technology. He has been the Dean (Curator) of
library, National Taipei University of Technology, Taiwan from 2000 to 2006 and the Director
of Extracurricular Activity, office of student affairs, National Taipei University of Technology,
Taiwan from 1995 to 2000.
Prof. Shen-Ming Chen has published over 500 research and review papers in internationalSCI
journals. Some of their papers have been selected as the most cited papers in theJournal of
Electroanalytical Chemistry and Biosensor & Bioelectronics. He received threetimes
Distinguish Professor awards. He also received three times Outstanding Research Award from
National Taipei University of Technology, Taiwan. He have edited or attended two books for
NOVA publications titled “Nanostructured Materials for Electrochemical Biosensors” and
“Biosensors: Properties, Materials and Applications” and contributed four book chapters.
Areas of Interest
Nanocomposites, bionanomaterials, bionanotechnology, electrochemical biosensor, biosensors,
bioelectrochemistry, chemical materials, electroanalytical Chemistry, electrocatalysis and
electroanalysis, photoelectrochemistry, metalloproteins, metalloporphyrins, nanotechnology,
spectroscopic techniques, scanning probe techniques, quartz crystal microbalance, materials
research, fuel cells, solar cell and photovoltaic cells.
2018 NHA TRANG CONFERENCE
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Topic: “Electrochemical Deposition and Synthesis of Advanced Nanomaterials for
Electrochemical Biosensors and Energy Storage Applications”
Shen-Ming Chen
National Taipei University of Technology, Taiwan
Abstract- The existing carbon materials can be classified into activated carbon (0-dimensional), carbon
nanotubes (CNT) (1-dimensional), graphene (2-dimensional) and carbon foams (3-dimensional). Among
these, graphene is well known to be the top candidate; However, preparation of graphene from graphite is
an intricate procedure that can lead to an explosion during the oxidation of graphite. Similarly, the
preparation of CNT also has some practical difficulties due to the complicated instrument setup.
Fascinatingly, the preparation of ACs is simple, environmentally friendly and cost-effective. For the first
time, Pongam seed shells-derived activated carbon and cobalt oxide (~2-6 nm) nanocomposite
(PSAC/Co3O4) is prepared for the high performance non-enzymatic glucose sensor and supercapacitors.
Remarkably, the fabricated glucose sensor is found to be exhibit an ultra-high sensitivity with a lower
detection limit, and long-term durability. Moreover, the PSAC/Co3O4 electrode possess an appreciable
specific capacitance and long-term cycle stability. The high surface area carbon porous materials (CPMs)
synthesized by the direct template method via self-assembly of polymerized phloroglucinol-formaldehyde
resol around a triblock copolymer template were used as supports for nickel nanoparticles (Ni NPs).
Further electrochemical measurements by cyclic voltammetry (CV) and differential pulse voltammetry
(DPV) also revealed that the Ni/CPM modified electrodes showed excellent sensitivity (59.6 µA µM-1
cm-2
)
and relatively low detection limit (2.1 nM) toward the detection of Hg(II) ion. The system is also been
successfully applied for detection of mercuric ion in real sea fish samples. Furthermore, a facile method has
been developed for fabricating selective and sensitive electrochemical sensor for the detection of toxic
-derived
porous activated carbons (PACs). The Pd/PAC-modified GCEs were exploited as electrochemical sensors
for the detection of toxic heavy metal ions, viz. Cd2+
, Pb2+
, Cu2+
, and Hg2+
, which showed superior
performances for both individual as well as simultaneous detections. For simultaneous detection of Cd2+
,
Pb2+
, Cu2+
, and Hg2+
‒1 cm
‒2, and detection limit of 41, 50,
66 and 54 nM, respectively, were observed. Moreover, the Pd/PAC-modified GCEs is also show
perspective applications in detection of metal ions in real sample, as illustrated in this study for a milk
sample. In addition, the synthesis of highly dispersed and stable ruthenium nanoparticles (RuNPs; ca. 2–3
nm) on porous activated carbons derived from Moringa Oleifera fruit shells (MOC) is reported. The
as-prepared MOC carbonized at 900 oC was found to possess a high specific surface area (2522 m2 g
−1)
and co-existing micro- and mesoporosities. Upon incorporating RuNPs, the Ru/MOC nanocomposites
loaded with modest amount of metallic Ru (1.0‒1.5 wt%) exhibit remarkable electrochemical and
capacitive properties, achiving a maximum capacitance of 291 F g‒1
at a current density of 1 A g‒1
in 1.0 M
H2SO4 electrolyte. These highly stable and durable biomass carbons modified electrodes, which can be
facily fabricated by the eco-friendly and cost-effective route, should have great potentials for practical
applications in energy storage, biosensing, and catalysis.
2018 NHA TRANG CONFERENCE
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Keynote Speaker II
Prof. Ho Chee Cheong
University AIMST, Malaysia
Employment
Dean and Professor, Faculty of Applied Sciences, University AIMST, 2002 - 2006.
R&D Director, Omnigrace Ltd, Thailand, 1999 - 2002.
Lecturer, Associate Professor, Professor, Head of Department, Department of Chemistry,
University of Malaya, 1975 -1999.
Research Officer, Rubber Research Institute Malaysia, 1973 -1975.
Research Interests
Colloid and Surface chemistry of emulsions, slurries, latex dispersions
Visualization and Characterization techniques of latex films
Green technologies for latex film formation and processing
Synthesis and characterization of novel materials
Latex film formation mechanism of rubber latex systems
Professional Membership
Fellow, Malaysian Institute of Chemistry, since 1989.
Fellow, Royal Society of Chemistry, UK, since 1990.
Fellow, Academy of Sciences Malaysia, since 1998.
Fellow, Malaysian Oil Scientist' and Technologist' Association, since 1998.
Chartered Chemist, Royal Society of Chemistry, UK, since 1990.
Chartered Scientist, Science Council, UK, since 2004.
Member, International Polymer Colloids Group, since1995.
2018 NHA TRANG CONFERENCE
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Topic: “Latex Technology and Interfacial Phenomena Behind the Dipping of Quality Medical
Gloves”
Ho Chee Cheong
University AIMST, Malaysia
Abstract- Medical glove is a medical device for the protection of healthcare workers and for
controlling infection. After the emergence of AIDS/HIV pandemic in the late 1980s, the
wearing of medical gloves by healthcare workers have been made mandatory in advanced
countries to curb the transmission of highly infectious diseases and viruses. In recent years
with the outbreaks of avian flu and other highly contagious diseases such as Middle East
respiratory syndrome (MERS), medical gloves have played an even greater role in preventing
the spread of pathogens.
Medical gloves are made from latexes, mostly from natural rubber latex obtained from the
Hevea brasiliensis trees. In recent years they have also been made from a limited number of
synthetic latexes such as acrylonitrile butadiene rubber (NBR) latex, polychloroprene latex
and synthetic cis-polyisoprene latex. One of the paramount pre-requisites for medical gloves
as a barrier device is that it should be impervious to pathogens. Others are it should be
highly stretchable and yet elastic so that it returns its original shape immediately without any
deformation after the force is removed; it is soft and conform to the shape of the hand to
confer comfort to the users; it should be easily donnable on the inner surface of the glove and
able to provide the right degree of grip on the outer working surface. In other words, it should
feel like a second skin to the user to exercise the right dexterity to perform the task.
The choice of the right latex feedstock for the gloves pre-determines its qualities. The
molecular structure of the polymer material of the latex underpins the latex film formation
properties and the physical characteristics of the gloves produced. The ease of processing is
very much dependent on the ability to control the colloid stability of the compounded latex
during dipping. The formation on the mould surface of a wet latex gel and converting that
eventually into pieces of gloves on a very fast moving dipping chain carrying hundreds of
moulds is an engineering feat and requires an in depth understanding of the surface science
involving interactions between multitudes of interfaces on the rapid moving chain. The
ensuing surface treatment of the gloves to impart to them the necessary application
functionalities is another interfacial phenomenon.
This presentation will attempt to elucidate and connect the relevant technologies involving
latex and interfacial phenomena that enable a consistent trouble-free dipping process to
produce quality latex products.
2018 NHA TRANG CONFERENCE
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Keynote Speaker III
Prof. Paisan Kittisupakorn
Chulalongkorn University, Thailand
Head of Department of Chemical Engineering
Education
Ph.D. (Chemical Engineering), Imperial College, London, UK, 1995
M. Eng. (Chemical Engineering), Imperial College, London, UK, 1992
B.Eng. (Chemical Engineering), Chulalongkorn University, Bangkok, Thailand, 1990
Areas of Interest
Control and Systems Engineering
Process Design and Optimization
Cleaner Technology
Product Development
2018 NHA TRANG CONFERENCE
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Topic: “Applications of Model Predictive Control for Chemical Processes”
Paisan Kittisupakorn
Chulalongkorn University, Thailand
Abstract- Model based predictive control schemes have been developed for chemical
processes: CSTR, batch reactive distillation and steel pickling process. In this work. State and
parameter estimation techniques have been incorporated to provide estimates of
unknown/uncertain parameters as well as states. In addition, process models used in the
formulation of the model predictive control approach are developed based on not only first
principles method but black box model using neural networks as well. It can be observed that
the applications of proposed model predictive control approaches are applicable in several
chemical processes. The performance of the controllers are much superior than conventional
PID in several cases in simulation such as for set point tracking, disturbance, model mismatch
and presence of noise.
2018 NHA TRANG CONFERENCE
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Keynote Speaker IV
Prof. Hiroyuki Nakamura
Tokyo Institute of Technology, Japan
Dr. Hiroyuki Nakamura received his PhD from Tohoku University under the supervision of
Professor Yoshinori Yamamoto in 1996. He became an assistant professor at Kyushu
University (1995-1997) and at Tohoku University (1997-2002). He worked as a visiting
assistant professor at University of Pittsburgh with Professor D. Curran (2000-2001). In 2002,
he was appointed as an associate professor at Gakushuin University and promoted as a
professor in 2006. In 2013, he was appointed as a professor at Tokyo Institute of Technology.
He received the Chemical Society of Japan Award for Young Chemists in 1999 and the
Incentive Award of the Japanese Society for Molecular Target Therapy of Cancer in 2007. He
became president of the Japanese Society of Neutron Capture Therapy in 2015. His research
interests include synthetic methodology, medicinal chemistry, chemical biology,
photodynamic therapy, and neutron capture therapy.
Professional Societies
Chemical Society of Japan
American Chemical Society
The Pharmaceutical Society of Japan
International Society of Neutron Capture Therapy (Board of Councilor, 2004-present)
Japanese Society for Neutron Capture Therapy (Committee, 2003-present)
The Japanese Society for Molecular Target Therapy of Cancer (Committee, 2009-present)
The society of Synthetic Organic Chemistry, Japan (Editorial Committee, 2010-present)
2018 NHA TRANG CONFERENCE
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Topic: “Protein Engineering Using Photo-Induced Chemical Labeling Technology”
Hiroyuki Nakamura
Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute
of Technology, Japan
Abstract- Techniques for the visualization of target proteins by small-molecule probes in
living systems are highly important to investigate the function, dynamics, localization, and
crosstalk of individual proteins. Especially, photo-induced chemical labeling is one of the
most very useful strategy for detecting target proteins of biologically active molecules having
undefined action mechanisms. In this paper, our recent developments of target protein
identification and modification using photo-induced chemical labeling technology will be
presented. We succeeded in the design and synthesis of multifunctional chemical probes of the
hypoxia-inducible factor (HIF)-1 inhibitor, that contain a benzophenone as a photoaffinity
labeling group to identify the target protein. HSP60 was identified as a primary target protein,
indicating that HSP60 has an important role for HIF-1α stabilization under hypoxia.
We also focused on Ru(bpy)3 complexes which would genetrate tyrosyl radicals under
light-irradiated conditions. We established a target protein-selective modification thechnology
using ligand-directed Ru(bpy)3 photocatalysts (LDRP). We developed a suitable tyrosyl
radical trapping agent (TRT) which made covalent bond with tyrosine residue under the
reaction condition with LDRP and visible light irradiation. We demonstrated carbonic
anhydrase (CA)-selective modification in mouse erythrocyte lysate Furthermore, LDRP
induced chromophore-assisted light inactivation (CALI) of target proteins under visible light
irradiation in cells. In addition, selective purification and chemical labeling of a target protein
in a protein mixture were simultaneously achieved on the surface of affinity beads
functionalized with ligands. Our technologies are expected to open doors to new applications
of affinity chromatography as well as highly sensitive detection of target proteins.
2018 NHA TRANG CONFERENCE
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Keynote Speaker V
Prof. Low Sui Pheng
National University of Singapore, Singapore
Dr. Low Sui Pheng, is with the Department of Building, National University of Singapore
(NUS). He received his PhD, MSc(Eng), BSc (Building)(Hons), and Diploma in Building
from University College London, University of Birmingham, NUS and Singapore Polytechnic
respectively. He was awarded a higher doctorate, DSc(Civil Engineering), by the University
of Birmingham in 2012 for his significant, substantial and sustained contributions to
knowledge in the built environment. He is also a Fellow of the Chartered Institute of
Building.
Professor Low has served as Vice-Dean and Head in the NUS School of Design and
Environment and the NUS Department of Building respectively. He currently teaches project
management, quality, productivity and development technology in NUS. A winner of
numerous best paper, best reviewer and teaching excellence awards, he has also consulted and
researched extensively on project management issues relating to the construction industry. He
has published more than 500 journal and conference papers and authored 20 books relating to
construction project management. Professor Low is currently the Book Series Editor of
Management in the Built Environment published by Springer. A member of the editorial
advisory boards of more than 20 leading international refereed journals, he is frequently
called upon to serve as external examiner, expert reviewer and independent validator by
overseas universities and government agencies. He has been invited to serve in the scientific
committees of many international and regional symposiums. Professor Low is presently
Director of the Centre for Project Management and Construction Law in NUS.
2018 NHA TRANG CONFERENCE
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Topic: “Legislating Construction and Building Materials for Productivity Improvement in
Singapore”
Low Sui Pheng
Department of Building, National University of Singapore, Singapore
Abstract- The presentation highlights Singapore’s journey towards higher productivity and
quality in the construction industry. A significant development in this journey is the
introduction of the Building Control (Buildability and Productivity) Regulations 2011 that
provides the regulatory framework within which design consultants and contractors must
achieve minimum Buildability Scores and Constructability Scores at the upstream and
downstream phases respectively before their projects are approved by the authorities. The
Regulations have also been revised regularly to consider new game-changing technologies
(including Amendment No. 2 in 2017). Through the Code of Practice on Buildability (2017),
this presentation highlights the construction technology and building materials mandated to
meet these regulatory requirements. Singapore is the only country in the world to regulate the
use of specific construction technology and building materials to enhance productivity. This
journey seeks to transform Singapore’s construction industry to raise its international
competitiveness.
2018 NHA TRANG CONFERENCE
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Keynote Speaker VI
Prof. Zongjin Li
University of Macau (UM), China
Dr. Zongjin Li is Chair professor at Institute of Applied Physics and Materials Engineering at
University of Macau (UM). He joined UM after his service Hong Kong University of Science
and Technology from 1994 to 2016. He received his B.E. from Zhejiang University,
Hongzhou, China in 1982 and obtained both his M.S. and PhD from Northwestern University,
Chicago, U.S.A, in 1990 in 1993, respectively. He is a fellow of American Concrete Institute
and a registered professional engineer in Hong Kong, China. He is a member of committees
of ISO/TC71, First vice Chair of China Group of RILEM and Founding President of ACI
China Chapter.
He has done extensive researches in the area of cement-based materials and non-destructive
evaluations. As the chief scientist, he has led a China Key National Basic Research Project
(973), ‘Basic study on environmentally friendly contemporary concrete’, which has made a
great contributions to advance concrete technology in China. As the founding chair of Gordon
Research Conference, “Advanced Materials for Sustainable Infrastructure Development” in
2014, he has brought the research conference of building materials into a higher scientific
level.
He has published 5 technical books, in which ‘Advanced Concrete Technology’ published by
John Wiley has been collected by many national libraries and most major university libraries
and used by many universities as text or reference books for civil engineering. He has also
published more than 400 technical papers with a SCI H-index of 36 and Scopus H-index of 39.
In 2016, he has been selected as the one of the 150 most cited authors in Civil engineering
field. He has also been awarded five US and seven Chinese patents. Three of his patents have
been developed into commercial products.
He received the Arthur R. Anderson Medal from American Concrete Institute in 2017 and
Distinguished Visiting Fellowship Award from British Royal Academy of Engineering in
2014.
2018 NHA TRANG CONFERENCE
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Topic: “Development of Advanced Building Material Techniques”
Zongjin Li
Institute of Applied Physics and Materials Engineering, University of Macau (UM), China
Abstract- Advanced building materials should be energy effective, environmental friendly,
more durable, functional, renewable and or can make living working environment more
comfortable. In this talk, advanced building materials developed recently will be introduced,
including thin-walled low frequency sound shielding composites, innovative reflective
inorganic heat insulation coating materials, structural-functional wall panel with phase-change
material and cement-based piezoelectric composites. The presentation will also introduce
energy effective binders such as MgO-based cement as rapid-hardening material for 3D
printing technique. Moreover, the newly developed advanced nondestructive methods such as
non-contact resistivity impedance measurement methods for concrete hydration monitoring
pore structure interpretation. Techniques based on the cement-based piezoelectric sensor for
quality control of cement and concrete as well as for traffic monitoring will also be
introduced.
2018 NHA TRANG CONFERENCE
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Keynote Speaker VII
Prof. Jin-Keun Kim
Korea Advanced Institute of Science and Technology, South Korea
EDUCATION
B.S. Seoul National University (1975); M.S. Seoul National University (1978); Ph.D.
Northwestern University (1985)
RECENT EXPERIENCE
1994 ~ Professor of Civil and Environmental Engineering, KAIST
1998 ~ 1998 Visiting Scholar of UPC, Spain
1995 ~ 1998 Department Head of Civil Engineering, KAIST
2000 ~ 2002 Department Head of Civil and Environmental Engineering, KAIST
2004 ~ 2009 Director of Infra-Structure Assessment Research Center (ISARC), KCI
2003 ~ 2008 Director of FIDIC-KAIST-KENCA Training Center, KAIST
2006 ~ Director of U-Space Center, KAIST
2007 ~ 2013 Director of KAIST Institute for Urban Space and Systems, KAIST
2017 ~ Director of Smart City Research Center
2013 ~ Chief editor of International Journal, "Advances in Concrete Constructions"
PROFESSIONAL MEMBERSHIP AND ACTIVITIES
Member of Korean Academy of Science and Technology (KAST); Member of National
Academy Engineering of Korea (NAEK); Member of Korea Concrete Institute (KCI); Fellow
of the American Concrete Institute (ACI); Honorary Member of Japan Concrete Institute (JCI);
Member of fédération internationale du béton (fib); Member of Korea Society of Civil
Engineer (KSCE); Member of Architectural Institute of Korea (AIK); Member of Korea
Institute of Computational Structural Engineering Institute of Korea (COSEIK); Member of
Korea Society for Composite Materials (KSCM)Member of Korea Institute for Structural
Maintenance Inspection (KSMI)
ACTIVITIES IN KCI (KOREA CONCRETE INSTITUTE)
Director of General Affairs (1989 ~ 1990); Director of Publications (Chief editor of KCI
Journal) (1993 ~ 1994); Director of Technical Affairs (1995 ~ 1998); Auditor (2001 ~ 2002);
Vice President (2003 ~ 2004); President (2009 ~ 2010); Secretary of Committee for
2018 NHA TRANG CONFERENCE
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Development of KCI Code (1997 ~ 1999); Chairman of Committee for Amendment of KCI
Code (2002 ~ 2003); Co-Chairmen of JCI-KCI Joint Committee on Development of
Assessment Code for Existing Structures (2006 ~ 2009); Chairman of Special Committee for
the Development of KCI Manual of Concrete Practice (2011 ~ )
RESEARCE INTERESTS
Cracking in concrete; Properties of early age concrete; Application of fracture mechanics;
Long-term behavior of concrete structures; Hydration heat analysis of concrete structure
HONOURS AND AWARDS
Excellent Paper award of Korean Concrete Institute (1992); Excellent Paper award of KAIST
(1996); Academic award of Minister of Land, Infrastructure, and Transport (2004); Scientist
of the Month (2006); BukAm awards, Korean Concrete Institute (2007); Academic award of
Korean Concrete Institute (2011)
Topic: “Mechanical Properties and Long-Term Deformation of Concrete Depending on the
Moisture Distribution”
Jin-Keun Kim
Korea Advanced Institute of Science and Technology, South Korea
Abstract- Moisture inside the concrete structures is hard to predict properly because it is
affected by many factors such as mixture and environmental conditions. However, moisture is
one of the most important factors that affect the mechanical properties and long-term
deformation of concrete which are the fundamental properties of concrete for design and
maintenance of concrete structures. This paper explains the overall concept regarding the
moisture distribution and the relationship between the moisture and properties of concrete.
Also, the improved prediction methods for mechanical properties and long-term deformation
considering the moisture are provided. These prediction methods can be extended to various
concrete structures.
2018 NHA TRANG CONFERENCE
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Brief Schedule for Conference
Day 1
February 23, 2018 (Friday) 9:00~17:00
Venue: Foyer of Meeting Room (1st Floor) Arrival Registration
Afternoon Conference
Venue: Jupiter 1 Room (1st Floor)
Opening Remark 12:55~13:00
Prof. Shen-Ming Chen, National Taipei University of Technology, Taiwan
Keynote Speech I 13:00~13:35
Prof. Shen-Ming Chen, National Taipei University of Technology, Taiwan
Keynote Speech II 13:35~14:10
Prof. Ho Chee Cheong, University AIMST, Malaysia
Coffee Break & Group Photo Taking 14:10~14:30
Session 1 14:30~17:00
10 presentations-Topic: “Chemistry and Chemical Engineering”
Poster Session 12:55~17:00 Venue: Jupiter 1 Room
Day 2
February 24, 2018 (Saturday) 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms (1st Floor)
Arrival Registration, Keynote Speeches, and Conference Presentations
Morning Conference
Venue: Apollo 1 Room
Opening Remark 8:45~8:50
Prof. Low Sui Pheng, National University of Singapore, Singapore
Keynote Speech III 8:50~9:25
Prof. Paisan Kittisupakorn, Chulalongkorn University, Thailand
Keynote Speech IV 9:25~10:00
Prof. Hiroyuki Nakamura, Tokyo Institute of Technology, Japan
Coffee Break & Group Photo Taking 10:00~10:20
Keynote Speech V 10:20~10:55
Prof. Low Sui Pheng, National University of Singapore, Singapore
Keynote Speech VI 10:55~11:30
Prof. Zongjin Li, University of Macau (UM), China
Keynote Speech VII 11:30~12:05
Prof. Jin-Keun Kim, Korea Advanced Institute of Science and Technology, South Korea
Lunch: 12:05~13:00 Venue: Central Restaurant – M floor
Afternoon Conference
Session 2: 13:00~16:15
Venue: Jupiter 1 Room
13 presentations-Topic: “Building Materials
and Structures”
Session 3: 13:00~16:15
Venue: Jupiter 2 Room
13 presentations-Topic: “Material Science
and Civil Engineering”
Coffee Break 16:15~16:30
Session 4: 16:30~19:30
Venue: Jupiter 1 Room
12 presentations-Topic: “Construction and
Urban Engineering”
Session 5: 16:30~19:30
Venue: Jupiter 2 Room
12 presentations-Topic: “Concrete
Materials and Technology”
Poster Session 8:45~19:30 Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Dinner: 19:30 Venue: Central Restaurant – M floor
Day 3 February 25, 2018 (Sunday) 9:00~17:00 One-day Visit
Tip: Please arrive at the Conference Room 10 minutes before the session begins, and upload PPT/ PDF file into the conference laptop.
2018 NHA TRANG CONFERENCE
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Detailed Schedule for Conference
February 23, 2018 (Friday)
Venue: Foyer of Meeting Room (1st Floor)
9:00~17:00 Arrival Registration
Note: (1) The registration can also be done at any time during the conference.
(2) The organizer doesn’t provide accommodation, and we suggest you make an early reservation.
(3) One Best Oral Presentation will be selected from each oral presentation session. The Certificates
for Best Oral Presentation will be awarded at the end of each session on February 23&24, 2018.
Venue: Jupiter 1 Room (1st Floor)
12:55~13:00
Opening Remark
Prof. Shen-Ming Chen
National Taipei University of Technology, Taiwan
13:00~13:35
Keynote Speech I
Prof. Shen-Ming Chen
National Taipei University of Technology, Taiwan
Topic: “Electrochemical Deposition and Synthesis of Advanced Nanomaterials for
Electrochemical Biosensors and Energy Storage Applications”
13:35~14:10
Keynote Speech II
Prof. Ho Chee Cheong
University AIMST, Malaysia
Topic: “Latex Technology and Interfacial Phenomena Behind the Dipping of
Quality Medical Gloves”
14:10~14:30 Coffee Break & Group Photo Taking
14:30~17:00 Session 1 : 10 presentations-Topic: “Chemistry and Chemical Engineering”
February 24, 2018 (Saturday)
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms (1st Floor)
8:45~8:50
Opening Remark
Prof. Low Sui Pheng
National University of Singapore, Singapore
8:50~9:25
Keynote Speech III
Prof. Paisan Kittisupakorn
Chulalongkorn University, Thailand
Topic: “Applications of Model Predictive Control for Chemical Processes”
2018 NHA TRANG CONFERENCE
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9:25~10:00
Keynote Speech IV
Prof. Hiroyuki Nakamura
Tokyo Institute of Technology, Japan
Topic: “Protein Engineering Using Photo-Induced Chemical Labeling
Technology”
10:00~10:20 Coffee Break & Group Photo Taking
10:20~10:55
Keynote Speech V
Prof. Low Sui Pheng
National University of Singapore, Singapore
Topic: “Legislating Construction and Building Materials for Productivity
Improvement in Singapore”
10:55~11:30
Keynote Speech VI
Prof. Zongjin Li
University of Macau (UM), China
Topic: “Development of Advanced Building Material Techniques”
11:30~12:05
Keynote Speech VII
Prof. Jin-Keun Kim
Korea Advanced Institute of Science and Technology, South Korea
Topic: “Mechanical Properties and Long-Term Deformation of Concrete
Depending on the Moisture Distribution”
12:05~13:00 Lunch
13:00~16:15 Session 2 : 13 presentations-Topic: “Building Materials and Structures”
Session 3: 13 presentations-Topic: “Material Science and Civil Engineering”
16:15~16:30 Coffee Break
16:30~19:30 Session 4: 12 presentations-Topic: “Construction and Urban Engineering”
Session 5: 12 presentations-Topic: “Concrete Materials and Technology”
19:30 Dinner
2018 NHA TRANG CONFERENCE
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Session 1
Tips: The schedule for each presentation is for reference only. In order not to miss your presentation,
we strongly suggest you attend the whole session.
Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y0006 Presentation 1 (14:30~14:45)
In-Situ Measurements of Carbon Stable Isotopes Ratio in Karstic Cavesby Ftir Spectroscopy
Ira Litvak, Yaakov Anker and Haim Cohen
Ariel University, Israel
Abstract—Carbon stable isotope ratios measurement serves as an important implement for
environmental geochemical processes study. While Mass spectrometry is commonly used for
the task, FTIR (Fourier Transform Infra-Red) spectroscopy has the potential for determining
these isotopic ratios with the advantage of simple in-situ measurements. On-line analysis
enables continuous processes monitoring and decreases sampling errors, caused by the
sampling and the laboratory analysis procedures (e.g. for measurement in the mass
spectrometer).
Variance in carbon stable isotope ratios are results of water-rock interactions, phase transitions,
changes in ambient temperature and humidity, biochemical reactions and more. In this study
carbon isotope ratios were measured using FTIR spectrophotometer in both field and in
laboratory conditions and corroboration of the analysis validity was done by Mass
spectrometer measurements.
The research results suggest that: Carbon isotope ratio (13C/12C) may be determined by
FTIR spectroscopy of the CO2 released from water samples under acidic conditions.
As a case-study, FTIR analysis was used for characterizing phase transitions and water-rock
interactions of runoff infiltrating a cave. By profiling the stable isotope systems, we have
found that the δ13C values, which were calculated using FTIR showed sufficient agreement to
those of the Mass Spectrometer measurements.
A case study analyzing water samples from karstic cave (Sif cave, Israel), verified that: (a) On
line determination of water 13C/12C ratio can be carried out with the portable FTIR
spectrometer, hence can be taken to field measurements as preformed in the Sif cave. (b) The
C concentration sensitivity achieved was 7‰ in δ values, which is applicable for most carbon
stable isotopes applications.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y0007 Presentation 2 (14:45~15:00)
Atom-Transfer Radical Polymerization on the Living Cell Surfaces
Sung Ho Yang
Korea National University of Education, Republic of Korea
Abstract—Simple but highly versatile in the formation of polymer brushes on solid substrates
is surface-initiated, atom-transfer radical polymerization (SI-ATRP), where polymers are
grown, by controlled radical reactions, from the ATRP initiators that are introduced onto a
substrate.1 Although hybrid structures of living cells and synthetic polymers have a great deal
of potential in cell-based applications, such as cell-based sensors, biomotors, biocatalysis,
theranostics, cell therapy, and cells-on-a-chip, it is extremely challenging to perform SI-ATRP
(and of course other polymerization protocols) on the surfaces of individual living cells,
because the reaction conditions are lethal to chemically labile cells.2 In this work, a
cytocompatible method of surface-initiated, activator regenerated by electron transfer, atom
transfer radical polymerization (SI-ARGETATRP) is developed for engineering cell surfaces
with synthetic polymers.3 Dopamine-based ATRP initiators are used for both introducing the
ATRP initiator onto chemically complex cell surfaces uniformly (by the material-independent
coating property of polydopamine) and protecting the cells from radical attack during
polymerization (by the radical-scavenging property of polydopamine). Synthetic polymers are
grafted onto the surface of individual yeast cells without significant loss of cell viability, and
the uniform and dense grafting is confirmed by various characterization methods including
agglutination assay and cell-division studies. This work will provide a strategic approach to
the generation of living cell–polymer hybrid structures and open the door to their application
in multitude of areas, such as sensor technology, catalysis, theranostics, and cell therapy.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y0009 Presentation 3 (15:00~15:15)
Asymmetric Michael Addition of 2-Oxochroman-3-Carboxylate Esters to
Trans--Nitroolefins for Construction of 3,4-Dihydrocoumarin Derivatives
Hui Jin, Soo Min Cho, Geum-Sook Hwang and Do Hyun Ryu
Sungkyunkwan University, Republic of Korea
Abstract—The enantioselective construction of an all-carbon quaternary stereogenic center is
a great synthetic challenge. In the last decade, substantial efforts have been made in the
catalytic asymmetric construction of quaternary carbon centers. Among them, the
organocatalytic asymmetric conjugate addition of prochiral trisubstituted nucleophiles to
b-substituted Michael acceptors has proven to be a powerful strategy for the asymmetric
construction of highly functionalized adjacent quaternary and tertiary stereocenters.
In this presentation, highly enantioselective Michael addition of 2-oxochroman-3-carboxylate
esters to trans--nitroolefins will be described. L-Proline derived bifunctional thiourea
catalyzed reaction can give direct access to dihydrocoumarin derivatives bearing adjacent
quaternary and tertiary stereocenters with up to >99% yield, >20:1 dr, and >99% ee. This
reaction is not sensitive to air or water, and can be carried out facilely on a gram scale without
reducing stereoselectivity or yield. The adduct was further transformed to a
spiro-dihydrocoumarin compound in three steps with good yield.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y0011 Presentation 4 (15:15~15:30)
Biocompatibility-Related Chemical Modifications of Poly (Propylene Imine) Dendrimers
Influence Their Interactions with Coomassie Brilliant Blue Dye
Lukasz Pulaski, Izabela Jatczak-Pawlik, Anna Janaszewska, Dietmar Appelhans and Barbara
Klajnert-Maculewicz
University of Lodz, Poland
Abstract—We have previously characterised a family of sugar-modified dendrimers
(glycodendrimers) with a poly(propylene imine) core for biological applications. Since amino
group-covered PPI dendrimers are strongly cytotoxic, the modifications were designed to
increase biocompatibility with cellular systems. While performing immunochemical studies
on glycodendrimer biocompatibility, we encountered unexpected chemical behaviour of the
nanoparticles with regard to their propensity for binding triphenylmethane dyes from the
Coomassie Brilliant Blue group. These dyes are known to bind positively charged polymers,
including linear poly(ethylene imine) and some dendrimers, but their interactions with PPI
dendrimers have not been characterised yet. We compared dendrimers with various levels and
densities of surface modifications, including several simple and compound sugars as well as
polyethylene glycol, separately or in combination. We present data that demonstrate multiple
modes of Coomassie dye binding to glycodendrimers, including electrostatic interactions with
ionised amino groups, hydrophobic stacking and intercalation. These noncovalent interactions
are significant both for increased knowledge on physicochemical properties of
surface-modified nanoparticles and for practical application since stained dendrimers are easy
to detect using absorptiometry or infra-red fluorimetry.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y2001 Presentation 5 (15:30~15:45)
Synthesis and Characterization of Chemically Functionalized Amorphous Silica Nanoparticles
Equipped with Uniform Nanopores for Removing Heavy Metal Ions from Wastewater
Eun-Hye Jang and Sungwook Chung
Pusan National University, South Korea
Abstract—Silica is a mineral commonly found in nature and has been widely employed in
industrial fields. In particular, amorphous silica nanoparticles (ASNs) are one of the most
common nanomaterials being used in many applications including industrial manufacturing,
composite materials, cosmetics, and foodstuffs due to their favorable physicochemical
properties. Because of their good biocompatibility, facile synthesis, and relatively easy
surface modification and labeling, ASNs are being developed for various biomedical and
pharmaceutical application such as drug delivery and therapy, multifunctional bioimaging
probes, biosensors, etc.
We are developing synthetic methods to prepare chemically functionalized ASNs in order to
use them to remove heavy metal ions from wastewater. We demonstrate highly monodisperse
(< 10%) ASNs with the average size range of ~15−300 nm are obtained from our method.
Furthermore, our methods allow ASNs can be produced with uniform nanopores of a high
specific surface area formed inside the nanoparticles. As-prepared ASNs and nanoporous
ASNs have been characterized by various means of materials characterization techniques
including transmission electron microscopy (TEM), scanning electron microscopy (SEM),
powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray
photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). These results
on the formation and chemical functionalization of ASNs and nanoporous ASNs, as well as
use as a means for removing heavy ions from aqueous solutions will be discussed in the
presentation.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y3001 Presentation 6 (15:45~16:00)
Effect of CoFe2O4 Content on Structural, Thermal, Magnetic, Electrical and Adsorption
Properties of CoFe2O4/Mwcnts Nano-Composites
Mohamed Gaba, N.H. Al-Zahrani, Y.M. A Angari and M.A. Abdel-Fadeel
King Abdulaziz University, Saudi Arabia
Abstract—CoFe2O4/MWCNTs magnetic nano-composites were synthesized via gelatin
auto-combustion method. The weight percent of the ferrite content was found to affect the
structural, thermal, electrical and magnetic properties of the entire composites. XRD
confirmed the presence of the two components. The nano-composites with ferrite ratio up to
30 % only exhibited the characteristic diffraction peaks of MWCNTs while in the higher
ratios the characteristic ferrites` diffraction peaks predominate. FT-IR spectra indicated the
presence of the two components with the existence of some interactions between them. TEM
images showed that MWCNTs decoration was accompanied by a gradual change in the size
of the ferrite particles with increasing ratio. An appropriate decoration mechanism was
suggested based on XRD and TEM measurements. The severe reduction in thermal stability
by addition of CoFe2O4 was attributed to its catalytic activity. VSM measurements indicated
ferromagnetic characteristics and showed a gradual increase in magnetization with increasing
ferrite ratio. Ac-conductivity measurements exhibited metallic properties for all investigated
nano-composites. The obvious decrease in the conductivity at higher temperatures, for ferrite
contents starting from 50 %, was attributed to the degrading of the MWCNTs skeleton and
decreasing electrons delocalization. Depending on the magnetic sensitivity and high surface
area the nano-composites (10 and 20 %) were investigated for the efficient removal of acid
red dye (AR) from wastewater. The effect of various parameters kinetics and thermodynamic
of the adsorption process was investigated and discussed.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y3002 Presentation 7 (16:00~16:15)
Determination of Antioxidant Capacity and Total Polyphenol Content of the Extracts from
Three Different Parts of Olive Plant and the Green Production of Iron Nano Particles (GInPs)
Ulker Bakir Ogutveren, Fadime Karaer, Esra Findik and Burcu Kagnicioglu
Anadolu University, Eskisehir, Turkey
Abstract—In this study, three different extracts were obtained from the stems, leaves and
seeds of the olive plant by ultrasonic method, and the antioxidant capacities and total
polyphenol contents of these extracts were determined. Chemical and physical properties of
GInPs produced using these extracts were identified.
In order to synthesize GInPs, 5 g sample was extracted in 100 mL water at 80 °C during 15
minutes in ultrasonic reactor with 45 kHz frequency. Folin-Ciocalteu method was used for
determining anti-oxidant capacity of the extracts and total polyphenol contents were
determined by FT-IR (SHIMADZU IRTracer-100 Model) and ATR (Pike Tech). 0.1 M
FeCI3 solution as a source of iron was mixed with these extracts using different volumetric
ratio to achieve nano-sized iron particle. The size distribution and zeta potential of iron
particles produced from each extracts were determined with zetasizer (Malvern 500210). The
volumetric ratio of iron solution and these extracts were investigated; these results were
correlated with anti-oxidant capacity and total polyphenol content. Final GInPs products
image was taken by stereomicroscope (Zeiss Discovery 20).
As a result of this study, it was shown that GInPs ranged from 10 nm to 100 nm were
produced easily, and the production efficiency was related anti-oxidant capacity and total
polyphenol content.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y3003 Presentation 8 (16:15~16:30)
Removal of Lead from Water by Electrocoagulation Applying Response Surface Method
(RSM) in an Uniquely Designed Rector
Ulker Bakir Ogutveren, Umran Tezcan Un and Nihal Erginel
Anadolu University, Eskisehir, Turkey
Abstract—Lead is highly harmful to living organisms even in very low concentration. Lead
exposure in humans can have severe neurological and physiological repercussions. The
objective of this study is treatment of lead from water by electrocoagulation using iron
electrodes applying RSM in an uniquely designed reactor. The evaluation of the main and
interaction effects of process variables such as current density, initial lead concentration, pH
and Na2SO4 concentration as a supporting electrolyte on the removal efficiency of lead were
analyzed applying RSM. The levels of the factors were determined with variance analysis
and found to be 10-50 mAcm-2 with the increments of 10 units for current density, 50-250
mgL-1 with the increments of 50 units for initial lead concentration, 3-7 with the increments
of 1 units for pH and 0.01-0.09 molL-1 with the increments of 0.02 units for Na2SO4
concentration.
As a result of study, it was found that current density has a linear effect while current density
and initial pH have quadratic effects on the removal efficiency. Lead removal efficiency
reach a maximum value of 98.76% when the current density was 40 mA/cm2 and initial pH
was 4.7.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
Y3006 Presentation 9 (16:30~16:45)
Mechanisms of Asymmetric Periodic Patterns in Precipitation of Calcium Phosphatein
Hydrogels
Min Kyung Jo and Sung Ho Yang
Korea National University of Education, Republic of Korea
Abstract—Biominerals such as bones and teeth are constructed of natural organic-inorganic
hybrids under elaborate controls in living organisms and mimicking these of perfection
structures, which is called biomineralization, has attracted many researchers’ attention.
Biomineralization is important in that it can be not only used for bone regeneration but also
for bottom-up microstructure designs. Bones are a complex system comprised of both organic
and inorganic components that are mainly collagen fibrils and calcium phosphates
respectively. Hydrogels are suitable matrices for biomineralization because they are very
similar to natural tissues and extracellular matrices, the organic components of bone, and can
be used for controlled diffusion of growth factors. We performed calcium phosphate
mineralization in a gelatin gel and unique structured periodic patterns which are a kind of
Liesegang pattern are discovered. Liesegang pattern is a discontinuous and periodic
precipitation bands under condition that the electrolytes diffuse into the gel containing other
electrolytes. The patterns are differentiated from ordinary Liesegang patterns by asymmetries
in each single band. Although there are abundant asymmetric structures in nature, few
asymmetric structures are investigated. The mechanism behind peculiar asymmetric periodic
patterns are investigated on the basis on the interaction between reaction and diffusion, which
is an insignificant factor in ordinary Liesegang pattern systems.
2018 NHA TRANG CONFERENCE
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Afternoon, February 23, 2018 (Friday)
Time: 14:30~17:00
Venue: Jupiter 1 Room
Session 1: 10 presentations-Topic: “Chemistry and Chemical Engineering”
Session Chair: Prof. Ho Chee Cheong & Prof. Lukasz Pulaski
C3008 Presentation 10 (16:45~17:00)
Finding the Simple Rule for Diagnosing the Operation Fault of Freezer
Seung Yeoun Choi, Bok Han Kim and Sean Hay Kim
Seoul National University of Science and Technology, South Korea
Abstract—This study aims to find a simple rule if freezer is left open, or refrigerant is
insufficiently charged. We have a comparative experiment to find an opportunity that the
simple rule is able to replace the machine learning approach. In contrast to the previous study
performed with the machine learning approach, this paper has derived more explanatory
variables and rules for diagnosing the operation faults of freezer. i) Freezer wall temperature
is found to be the most sensitive variable for diagnosing the door opening. When the open
door rule based on the freezer wall temperature is applied to the actual state, however, only
62.4% of windows are assessed as “True”. In other words, there is 37.6% chance of false
alarm. ii) We also assume that refrigerant mass is proportional to the ratio of accumulated
power to power factor. However, only 51.5% of windows turn out “True” when the
insufficient refrigerant rule is applied to the actual state. When refrigerant is actually
insufficient, 33% chance of critical false alarms still occur, which can harm the credibility of
the insufficient refrigerant rule. iii) To diagnose if the door leaves open by means of using
machine learning, all three variables (Active Power, Laboratory indoor temperature,
Refrigerator wall temperature) may not be necessary. Only the refrigerator wall temperature
but framed with 3 min window appears sufficiently credible, rather than the refrigerator wall
temperature at each time step. iv) To diagnose if refrigerant is insufficiently charged, instead
of the three variables, only power related variables including active power and power factor
would be sufficient for simpler monitoring and more accurate assessment.
2018 NHA TRANG CONFERENCE
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Session 2
Tips: The schedule for each presentation is for reference only. In order not to miss your presentation,
we strongly suggest you attend the whole session.
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0008 Presentation 1 (13:00~13:15)
Full-Scale Standard Fire Experiment and Numerical Modelling Behaviour of Non-Load
Bearing Calcium Silicate Partition Drywall
Ching-Yuan Lin, Yinuo Wang and Ying-Ji Chuang
National Taiwan University of Science and Technology, Taiwan
Abstract—The study uses the non-load bearing calcium silicate partition drywall as the test
specimen, with full-scale standard fire test and the CFD finite element numerical modelling
simulation on 300 cm × 300 cm area specimen. The whole process of experiment fire test and
the numerical modelling simulation result is highly correlated. This numerical modelling
simulation can be applied to other researches on the other wall systems. This is an innovative
and valuable research. Since they are highly correlated, the CFD finite element numerical
modelling can be processed to work out the predicted results before the test, which can
greatly save the cost of test. When the predicted results is satisfying, the standard fire test can
be processed to verify the results.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0011 Presentation 2 (13:15~13:30)
Synergy Action of Glass Powder and Foaming Additive in Production of Lightweight
Cement-Based Materials
Jaroslav Pokorný, Milena Pavlikova, Martina Záleská, Jiří Studnička and Zbyšek Pavlí
Czech Technical University in Prague, Czech Republic
Abstract—Waste glass in the form of finely grounded powder can be, due to its assumed
pozzolanic behaviour, used in cement and concrete industry as a Supplementary Cementing
Material (SCM) helping to reduce the consumption of natural resources and emission of
greenhouse gases. In this sense, the presented paper is focused on the use of waste
borosilicate glass in production of cement-based lightweight composites. For both Portland
cement and glass admixture, chemical composition, pozzolanic activity and basic physical
characteristics were accessed. In composite mixes, cement binder was partially replaced with
glass powder in the amount of 15 and 20 mass %. In order to produce lightweight materials,
foaming agent in the amount of 0.58 ml/kg of blended binder was used. For the developed
materials, bulk density, matrix density, total open porosity, mechanical resistance, water
transport parameters and thermal properties were tested The obtained experimental results
revealed pozzolanic activity of micro scale milled waste glass that led to the decrease in
porosity and thus improved mechanical resistance of the investigated composites. High
porosity of foamed concretes significantly improves their thermal-insulation function and
helps to save raw materials for their production.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0024 Presentation 3 (13:30~13:45)
The Effects of Carbon Fiber Reinforced Polymer Strengthening on Cylindrical Steel Storage
Tanks under Bending Shear Load
Phan Viet Nhut and Yukihiro Matsumoto
Toyohashi University of Technology, Japan
Abstract—Large thin-walled cylindrical steel storage tanks play important roles in the
development of economy and infrastructures. Storage tanks subjected to internal pressure can
cause buckling modes, especially elephant foot bulge at the bottom of the tanks. The design
of tanks against buckling is very necessary. In this paper, the load-carrying capacity and the
failure modes of the storage tanks subjected to internal pressure under bending shear load
will be calculated by the finite element analysis. The results will be compared with the design
method from Architectural Institute of Japan. Moreover, this paper will also consider the
effects of the use of carbon fiber reinforced polymer layers to strengthen storage tanks
against buckling and the increase of the load-carrying capacity of the tanks under bending
shear load.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0025 Presentation 4 (13:45~14:00)
Cyclic Loading Tests of Composite Moment Frames Using Octagonal CFTs
Jong Jin Lim and Tae Sung Eom
Dankook University, South Korea
Abstract—This research investigates the seismic performance of two interior beam-to-column
connections with floor slabs. Concrete-filled octagonal steel tube column, H-section steel
beam, and U-section steel beam were used for composite moment frames, respectively. To
release the stress concentration at the column face, two design methods were proposed. First,
H-section steel beam passed through the column, directly. Stopper plates were also used at
the column faces to decrease the slip deformation. Second, top and bottom flanges of
U-section beam were not welded to the column face. Instead, to transfer the tensile force of
the beam flange, reinforcement bars passing through the column were welded to the beam
flanges. The test results showed that the ductility of moment connections was sufficient in the
case of through details; However, the load-carrying capacity was significantly affected by the
details of beam-to-column connections.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0027 Presentation 5 (14:00~14:15)
Study on Mechanical Behavior of Self-Tapping Screws Connection Using Washers in
Single-Lapped Glass Fiber Reinforced Plastic Plates by Experiment and Finite Element
Analysis
Nguyen Ngoc Duong, Phan Viet Nhut, Chito Satake and Yukihiro Matsumoto
Toyohashi University of Technology, Japan
Abstract—In recent years, mechanical characteristics of Glass Fiber Reinforced Plastic
(GFRP) connections using bolts/rivet have been researched in detail, and they are used in
many GFRP structures. However, the connection lack bearing strength compared with
material strength and they need the prepared holes. In this paper, we surveyed the
self-tapping screws connection strength and effects of washers on connection strength of
single-lapped GFRP plates using self-tapping screws under tensile-shear loading by
experiment and finite element analysis (FEA). The strength of self-tapping screws connection
in GFRP plates depends on the washer's diameters. When increasing washer's diameter, the
bearing strength of connections increased. Hence, increasing washer's diameter at reasonable
levels is an effective method to increase the load carrying capability for self-tapping screws
connection in GFRP plates. Moreover, FEA was proposed to investigate the bearing strength
of connections and there were good agreements between FEA and experimental results.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0029 Presentation 6 (14:15~14:30)
Properties of Portland Cement Type V Mortar Mixed with Ground Rice Husk Ash and
Limestone Powder
Burachat Chatveera and Permphon Srinourn
Thammasat University, Thailand
Abstract—The objective of this research is to study the Properties of Portland cement Type V
mortar mixed with Ground Rice Husk Ash (GRHA) and two types of limestone powder (LS1
and LS2). The physical and chemical properties of Portland cement Type V, ground rice husk
ash, and limestone powder were tested. The properties of mortar such as water requirement,
compressive strength, compressive strength loss and drying shrinkage were investigated. The
solutions used in this study were sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4).
The concentrations of both solutions were 5% by weight in accordance with the ASTM C
1012 standard. GRHA, LS1, and LS2 have particle sizes of 29, 12 and 128 µm. The
replacement levels of GRHA, LS1, and LS2 in Portland cement Type V were 0%, 20% and
40% wt. of cementitious materials. The ratio of water to cementitious material was controlled
based on the water requirements conforming to flow value at 110 ± 5%. The results showed
that the compressive strength of mortar was decreased with increase the percentage
replacements of GRHA and LS in Portland cement Type V. At 180 days, the compressive
strength of all mortars was lower than that of the control mortar. Mortar containing 20% of
GRHA and LS (C80R10LS110) was the highest development in compressive strength and as
high as that of the control mortar. From the results of sulfate resistance, it was found that the
higher was the percentage replacements of GRHA and LS in Portland cement Type V, the
lower was the strength loss and drying shrinkage of mortar. The strength loss of mortars in
magnesium sulfate solution was more than those in sodium sulfate solution.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0043 Presentation 7 (14:30~14:45)
Seismic Strengthening Design and Performance Analysis of an Existing RC Frame
Yong Sun, Xin Chen, Yan-Qing Zhu, Wei-Gen Yu, Jia-Qing Li and Guan-Xing Su
Jiangsu Research Institute of Building Science Co., Ltd, China
Abstract—The reinforcement design and seismic performance analysis of the Teaching
Building of Jiangyan Experimental Elementary School are investigated in this paper. Firstly,
according to the seismic assessment results from an inspection company, the seismic
strengthening design is conducted by using the methods of enlarging sections and sticking
CFRP. Secondly, a three-dimensional model is established by using the structural analysis
software Open Sees, and both the dynamic characteristics and seismic responses under
frequent earthquake of the structure are analyzed. Lastly, the dynamic elastic-plastic time
history analysis of the structure is conducted under rare earthquakes, then seismic
performance of the structure with and without strengthening are compared under far-field
earthquakes. The results show that the seismic performance of the structure is effectively
improved, as the maximum reduction of the storey drifts can reach 35%, when the structure is
subjected to rare earthquake.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0048 Presentation 8 (14:45~15:00)
Experimental Investigation on Inelastic Cyclic Behavior of Bracing Member with
Wide-Flange Section
Dong-Hyeon Shin and Hyung-Joon Kim
University of Seoul, South Korea
Abstract—Braced frames have been frequently employed as the lateral force resisting system
of low- to mid-rise buildings. However, available test results are relatively limited to
establish analysis models of braces with wide-flange that are required to capture their
inelastic cyclic response. To address this, a full scale quasi-static test of a brace with
wide-flange section was carried out to investigate the important structural characteristics
which significantly influence its inelastic cyclic behaviour. This paper focuses on the
buckling strength, tensile yield strength and local buckling of the test specimen and compares
them with those predicted using an existing physical theory model. The physical model well
predicts the hysteretic curve within tensile regions. However, the analytical compressive
resistance of the specimen after buckling is overestimated compared to that obtained from the
test results.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0050 Presentation 9 (15:00~15:15)
Can Existing Design Codes Be Used to Design Flexural Reinforced Concrete Elements
Strengthened with Externally Bonded Novel Materials?
Christos G. Papakonstantinou, Christina Kakae and Nikolaos Gryllakis
University of Thessaly, Greece
Abstract—The use of composite overlays to strengthen or rehabilitate existing structural
elements has been investigated over the past few decades. The most common composites that
were used are based on Glass or Carbon fibers impregnated in an organic polymeric matrix,
known as GFRP or CFRP, respectively. Thus, many design codes throughout the world
provide methodologies to calculate the flexural strength of reinforced concrete members
strengthened with externally bonded Carbon or Glass fiber composites. It is essential to keep
in mind that the experimental databases that were used in these codes were based on
experiments conducted on these materials. However over the last years new materials have
emerged, such as steel fibers (SRP/SRG) and basalt fibers (BFRP), as well as textile
reinforced mortars (TRM). In this study the target was to investigate if the analytical models
described in the codes can effectively be used to describe these novel materials as well. In
order to do so, a statistical analysis was conducted to compare experimental results to results
obtained using the methodologies described in the codes. It was found that most codes
perform surprisingly well and in only few cases they do not provide acceptable results.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0053 Presentation 10 (15:15~15:30)
Load Rating and Buckling of Circular Concrete-Filled Steel Tube (CFST): Simulation and
Experiment
L H Vu, Nguyen Cong Duc, L V Dong, D L Truong, N M T Anh, H Q Hung and P V Hue
Mien Trung University of Civil Engineering, Vietnam
Abstract—The paper studies estimate ultimate strength and local buckling of circular
concrete filled steel tube (CFST) specimens subjected to axial load using strain gage, force
transducer and displacement sensor. The strain responses of CFST column in testing
procedure and the results of finite element modelling will be used to predict failure modes
when cracks occur in concrete core and deformation increases on steel tube’s surface.
Besides, the principles of Eurocode 4 and AISC 360-10 are used to calculate the critical
buckling stress in comparison with experimental approach and numerical evaluation.
Combining experimental and simulation data can be very useful for diagnostic load rating
and limit, and effective to evaluate the damage on long-term structural health monitoring of
CFST members.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0062 Presentation 11 (15:30~15:45)
Cyclic Behaviour of HPFRCC Coupling Beams with Diagonal Reinforcement
Sang Whan Han and Seung Bum Kim
Hanyang University, South Korea
Abstract—Coupled shear walls are efficient in resisting lateral forces induced by winds and
earthquakes. However, it is difficult to construct coupled shear walls particularly because
current design codes require complex reinforcing details within coupling beams. The
objective of this study was to investigate the cyclic behaviour of HPFRCC (high performance
fiber reinforced cement composites) diagonally reinforced concrete (DRC) slender coupling
beams. For this purpose, HPFRCC and conventional reinforce concrete DRC coupling beams
were made and tested. This experimental study shows that HPFRRCC DRC coupling
produced better seismic behaviour than corresponding conventional DRC beams.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C0063 Presentation 12 (15:45~16:00)
Application of HPFRCC on Coupling Beams with Bundled Diagonal Reinforcement
Sang Whan Han, Chang Seok Lee, Kihak Lee and M.S. Shin
Hanyang University, South Korea
Abstract—The objective of this study was to develop simple reinforcement details for
diagonally reinforced coupling beams; reducing transverse steel by use of high-performance
fiber-reinforced cementitious composites (HPFRCCs) and bundling diagonal bars are
explored. Four coupling beam specimens with length-to-depth aspect ratios of 2.0 or 3.5 were
fabricated and tested under cyclic lateral displacements. The test results revealed that
HPFRCC coupling beams with bundled diagonal bars and widely spaced transverse
reinforcement (one-half the amount of reinforcement required by current seismic codes.)
exhibited excellent seismic performance compared with ordinary concrete coupling beams to
bundled diagonal bars and code-required transverse reinforcement.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 1 Room
Session 2: 13 presentations- Topic: “Building Materials and Structures”
Session Chair: Prof. Low Sui Pheng
C3004 Presentation 13 (16:00~16:15)
Green Tea Extract Inhibits Corrosion of Steel Reinforcing Bars Embedded in Mortar
Ivan Pradipta, Daniel Kong and Joash Tan Ban Lee
Monash University Malaysia, Malaysia
Abstract—Natural antioxidants are organic compounds which are rich in functional groups
with potential electron-donating activity: polar atoms and π–electron rich bonds. Electron
donation by these functional groups may promote an adsorption of natural antioxidants on
steel reinforcing bar (rebar) surface as mixed-type corrosion inhibitors, making the
antioxidants ‘green’ alternatives to commercial inorganic-based corrosion inhibitors. Green
tea is one of the richest sources of natural antioxidants. Therefore, this paper compares the
corrosion inhibition efficiency of green tea extract (GT) against the commercially established
calcium nitrite corrosion inhibitor (CI) on steel rebars embedded in mortar (i.e. reinforced
mortar specimens). Rebar corrosion was accelerated by subjecting the reinforced mortar
specimens to impressed current and cyclic wetting-drying exposure, and the corrosion
development was measured with linear polarization resistance technique. CI and GT were
used as admixed corrosion inhibitors, with the amount of CI and GT added into mortar were
referred to as doses. Doses of CI were calculated based on the ratios of chloride
concentration to nitrite concentration. Nitrite is the ionic component of calcium nitrite, which
is the active constituent of CI. Same dose and same amount of active constituent are ideally
ensured to compare the corrosion inhibition efficiency (IE) of CI and GT. However, at same
inhibitor dose, GT had a lower amount of active constituent than CI, because it had a
ten-times lower percentage ratio of active constituent weight to inhibitor weight (i.e.
concentration, concentration of GT and CI were 3% and 30% respectively). Therefore, two
separate IE comparisons were proposed, based on: 1) same inhibitor dose (volume) and 2)
same inhibitor weight of active constituent. In comparison at same inhibitor volume, same
volume of CI and GT were added into mortar. However, GT had a lower weight of active
constituent than CI due to its lower concentration. On the other hand, in order to compare the
IE of CI and GT at same inhibitor weight of active constituent, concentration of CI was
diluted to the same concentration as GT, which concurrently maintained similar doses
between the inhibitors. Results showed that CI and GT produced a similar IE (51-70%) at the
same weight of active constituent. However, at same inhibitor volume, GT showed a
significantly higher IE than CI (75-80% vs. 14-24%). This significantly higher IE of GT was
2018 NHA TRANG CONFERENCE
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contributed by a significant reduction in anodic reaction rate of iron oxidation (βa) and a
significant increase in rebar resistance to external polarization potential/current (Rp).
Meanwhile, the changes in cathodic reaction rate of oxygen reduction (βc) and open circuit
potential (OCP) of the rebars were not significant. These changes in βa and βc without a
significant change in OCP indicated that GT behaved as a mixed-type corrosion inhibitor as
hypothesized, which inhibited rebar corrosion by forming a protective layer on rebar surface
and increased Rp of the rebars. In fact, the significant increase in Rp was the most prominent
factor among the aforementioned factors contributing to a significantly higher IE of GT, as
GT specimens consistently showed a significantly higher Rp than CI specimens, even until
the end of corrosion test (191-221 vs. 56-64 Ω).
16:15-16:30 Coffee Break
2018 NHA TRANG CONFERENCE
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Session 3
Tips: The schedule for each presentation is for reference only. In order not to miss your presentation,
we strongly suggest you attend the whole session.
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0044 Presentation 1 (13:00~13:15)
A Review of Geometry Investigations of Helicoids
Jean Paul Vladimir
Peoples’ Friendship University of Russia (RUDN University), Russia
Abstract—This paper presents research on geometry of helicoids which occurred in different
papers. The purpose of the paper is to show a variety in types of helical surfaces which are not
well known, and discuss their possible application in architecture and civil engineering. This
review is a first stage of a wide investigation on stress-strain analysis methods as applied to
helical structures. Author’s attention is paid to the differences in terms, geometry and
materials used for these shells, and future possibilities of application of five types of helicoid
are also discussed. The work would be interesting for architects, civil engineers,
mathematicians and designers, and could lead to a progress in material usage efficiency.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0045 Presentation 2 (13:15~13:30)
Evaluation of Limit State for Pier According to Scour and Peak Ground Acceleration
Minho Kwon, Wooyoung Jung, Donghoon Shin and Kiyoung Kim
Gyeongsang National University, South Korea
Abstract—Recently, materials and structure analysis techniques used in various structures
have been developed and have made remarkable progress. As the design method for
reinforced concrete structures is shifting to the limit state design method, it is necessary to
conduct the limit state assessment. So far, several researchers have evaluated the safety of
many structures covered by the civil engineering field by introducing the limit state
assessment. However, there is a lack of research on bridge piers considering the level of scour.
Therefore, in this study, T-shaped bridge piers with a height of 11.5 m and a width of 2.8 m
installed in underwater ground were selected and the critical condition of bridge pier for 20
seismic waves was evaluated using LS-DYNA. The presence or absence of scouring was also
set as a variable and the level of scour is changed from 0 to 5 meter. As a result of the analysis,
the main fracture was tensile failure at the maximum ground acceleration of 0.2g to 0.4g, and
the maximum ground acceleration after the earthquake was found to be weak as a whole
except compression. Finally, as a result of comparing analysis results according to the
presence or absence of scour, the limit state reaching ratio showed a similar pattern without
significant change.
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0047 Presentation 3 (13:30~13:45)
Maintenance of Propeller Shaft Using Thermal Wire Arc Spraying
Surachai Numsaraphatnuek
Rajamangala University of Technology Tawan- ok: Uthenthawai Campus, Thailand
Abstract—This research work is to experiment repairing 304 stainless steel propeller shaft of
50 mm. in diameter which is damaged from wear, corrosion and erosion. The worn shaft is
subjected to the procedures of proper surface preparation and is coated by thermal twin wire
arc spraying process with a consumable arc cored wire of high-chromium steel. As the result
of analyzing sprayed coating layer, it is found that Vicker hardness is high as 901.2 HV,
indicating that the arc sprayed coating has an excellent wear resistance. Black stripes in a
lamellar microstructure have small quantity. The XRD analysis reveals that they are mostly
the oxides of Fe3O4 and FeO with very few Cr2O3 and the oxide content in the coating
analyzed by Nitrogen/oxygen determinator is low as 4.25 wt%. Therefore, the deposited
coating enable to adhere to the surface of shaft well and the coating is strong adequate to
prevent the propeller shaft from corrosion, abrasive wear and erosion. The assessing result of
operating the rebuilt propeller shaft in time period of 6 months is satisfactory with no have
any problems.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0051 Presentation 4 (13:45~14:00)
On Consideration Damage in Drilled Composite Laminates Modified by Nanofibers under
Three-Point Bending Test
Hamed Saghafi, Ali Gholizadeh, Mahdi Ahmadi Najaf Abadi, Reza Mohammadi and Ali
Nikbakht
Tafresh University, Iran
Abstract—FRP composites were first adopted as structural materials after World War II and
were applied in the boating and aerospace industries. In the following years, the advantage of
lightweight, high strength, and corrosion resistant composite materials gradually gained the
attention of the civil engineering community. Aided by a growth in research and
demonstration projects funded by industries and governments, the application of FRP
structures in civil engineering has progressed substantially around the world since the late
1980s. Because of the advantages in thermoset-based laminates, such as glass/epoxy
laminates, this type of composites is used mostly in many structures. But, low toughness is
the most disadvantages of these materials. Recently, a novel method was presented in which
nanofibrous mats are interleaved between composite layers.
On the other hand, in many structures like bridges it is necessary to drill composite parts and
joint them by bolts and nuts which make stress concentration around the hole. In this
situation, the condition is suitable for delamination. Therefore, the usage of nanofibers
around the holes can be a good choice for decreasing the damage. In this study, we used
GFRP laminates and all layers were interleaved with Nylon 66 nanofibers. Then, a hole
(diameter of 10 mm) was made in the middle of sample (200*36*5.5 mm3). The drilled
samples were tested under three-point bending tests. According to obtained results, the
damaged area decreased from 526 mm2 to 342 mm2 which shows 35% decrease. Other
damage types like debonding and matrix cracking were also considered by acoustic emission
method.
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0059 Presentation 5 (14:00~14:15)
Support Draft Calculation for a Ramp in the Form of Developable Helicoid
Marina Rynkovskaya
Peoples' Friendship University of Russia (RUDN University), Russia
Abstract—The article is about the analytical method of calculation a ramp in the form of
developable helicoid on the support draft. The asymptotic method of small parameter is applied
to solve the system of three differential equilibrium equations for developable helicoid
stressstrain. The numerical results of displacements and bending moments are verified and
coincide with engineering practice. The suggested approach can be extended for calculation of
torsohelicoids with other boundary conditions.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C0060 Presentation 6 (14:00~14:15)
Plastic Deformations Occuring in Shells with Developable Middle Surfaces during Bending
Marina Rynkovskaya
Peoples' Friendship University of Russia (RUDN University), Russia
Abstract—A huge number of investigations on developable surfaces have been made, but the
problem of analysis of plastic deformation during bending was usually out of the path. It is
widespread in practice to make these surfaces with the means of bending. In previous papers,
there has been found no note of the appearance of plastic deformations in a plate which is being
bent into a cylinder. That is why analytical investigation of bending of developable shells is
considered to be of great value. In the paper, analytical formulas which give the opportunity to
determine the bending moments appearing due to parabolic bending of an elastic slab, as well
as formulas for limitations to the slope angle of rectilinear generator of evolvent helicoids
during the process of parabolic bending of an annulus into the given helicoids, are presented.
The author also derived the formulas for determination of the minimum radius of a cylinder
made by bending of a plate without the emergence of plastic deformation in it.
2018 NHA TRANG CONFERENCE
- 57 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C1002 Presentation 7 (14:15~14:30)
Improve the Properties of Iraqi Bentonite Using Salts
Baydaa Hussain Maula
Institute of Technology, Middle Technical University, Iraq
Abstract—After the success of experiments using the Iraqi Bentonite in the work of drilling oil
wells as an alternative to the importer Bentonite which encouraged its use as an alternative for
the work of civil excavation, such as diaphragm walls, drilling, bore pile, barriers, dams and
tunnels. By changing the mixing and drilling method followed in the work of oil wells, which
requires the conduct of many experimental mixtures to reach the optimal mix. Benefits were
getting from the previous experiments conducted on such type of Bentonite were used by the
General Company for Geological Survey and Mining; in which the optimum mix was reached,
the method of mixing was determined, the components and quantities of the materials included
in the preparation of the optimal mix were determined in 1m3 of water for mixing time of 5 min.
This study was supported by the results obtained by the Geological Survey and Mining
Company, which relied on the use of (NaOH) as an alternative to the active calcium-centric
(CMC) of Bentonite, which is considered to be one of the most expensive materials. This paper
will be a good index for all concerned with implementation of civil excavations and field
works.
2018 NHA TRANG CONFERENCE
- 58 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C1003 Presentation 8 (14:30~14:45)
Developmental Effects of Soil-Pile Design Parameters in Liquefiable Sand
Baydaa Hussain Maula
Institute of Technology, Middle Technical University, Iraq
Abstract—This paper proposed the establishing procedure and introduced an OpenSessPL for
investigating dynamic pile-soil interaction in liquefying ground based on the shaking table
tests for application in the anti-seismic pile-supported bridge foundation in liquefying
ground. Large-scale shaking table tests for pile-soil-bridge structure dynamic interaction in
liquefying ground were conducted successfully corresponding to liquefying ground covered
with clay layer simulated as a middle circumference of three layers adopting reinforced
concrete single pile-pier exposed by a series of sinusoidal and EI centro earthquake events
wave of different amplitudes and frequencies. A series of numerical simulations based on the
established 3D finite element analysis method were carried out by including earthquake
events to investigate the pile-soils-bridge structure interaction due to the effect of design
parameters such as ; pile stiffness, the internal angle of sand and the over burden pressure.
The mentioned parameters beside seismic motion shape, peak acceleration (g) and degree of
ground inclination have a certain theoretical and practical significance for seismic design
related to lateral resistance and pile displacement, especially on reducing mechanism failure
against bending.
2018 NHA TRANG CONFERENCE
- 59 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C3001 Presentation 9 (14:45~15:00)
Empirical Stress Intensity Factor Equations for Cracked Steel Plates Repaired with
Double-Sided FRP Patches
Bach Kim Do and Akhrawat Lenwari
Chulalongkorn University, Thailand
Abstract—This paper presents an approach that combines the finite element (FE) modeling and
genetic programming (GP) to provide accurate empirical stress intensity factor (SIF) equations
for center-cracked steel plates repaired with adhesive-bonded double-sided fiber-reinforced
polymer (FRP) patches. Several past studies in recent years independently showed that the
reduction on the SIF of cracked structures after the patch repair is dependent on many factors
such as bonding techniques, material parameters, geometric parameters, environmental factors.
In this study, the SIF of the repaired cracked steel plate was considered to be a function of seven
parameters including the crack length, elastic modulus of FRP material, shear modulus of
adhesive material, dimensions (width, length, and thickness) of rectangular FRP patches, and
thickness of adhesive layers. Empirical SIF equations were created by the data mining process
of genetic programming analyses performed on a database created from the FE results. The SIF
values obtained from these equations were also compared with an analytical equation to assess
whether their ability to perform well on a certain design or not. It was found that the proposed
SIF equations fitted well with the FE results as the squared Pearson correlation coefficients R2
are higher than 0.9. In addition, the correlations between proposed equations and the analytical
equation are approximately 0.8.
2018 NHA TRANG CONFERENCE
- 60 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C3006 Presentation 10 (15:00~15:15)
Effect of Shrinkage Reducing Admixture on the Strength and Shrinkage of Alkali Activated
Cementitious Mortar
Chinh Van Nguyen, P S Mangat and G Jones
DaNang University of Science and Technology, Vietnam
Abstract—The effect of a shrinkage reducing admixture (SRA) on the mechanical properties
and drying shrinkage of a proprietary alkali activated cementitous material (AACM) was
investigated. Five AACM mortar mixes were prepared. SRA replaced the liquid activator at a
dosage of 0%, 1%, 2%, 4% and 7%. The liquid/binder ratio was 0.38. The samples were cured
in water. The flexural and compressive strengths of all mixes were determined at 1day, 2 days, 7
days and 28 days and the drying shrinkage was determined up to 80 days. The results show that
SRA reduced the shrinkage of AACM mortar by up to 69% after 80 days at 7% dosage.
However, SRA also reduced the compressive and flexural strengths of AACM mortars.
Increasing dosages of SRA reduced the compressive and flexural strength while recording less
shrinkage. Regardless of the dosage of SRA, a unique relationship exists between flexural
strength and compressive strength, which correlates with the data of previous research. The
AACM mortar maintained strength of over 43MPa (greater than 75% of the control mix at 0%
SRA dosage) at 7% SRA dosage, which is classified as high strength in accordance with British
Standard PAS 8820:2016.
2018 NHA TRANG CONFERENCE
- 61 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C3005 Presentation 11 (15:15~15:30)
An Efficient Method of Finding Stress Solutions in Porous Material under Axial Symmetry
Sergei Alexandrov, E Lyamina and T Nguyen-Thoi
Beihang University, China; Institute for Problems in Mechanics, Russia; Ton Duc Thang
University, Vietnam
Abstract—In the mechanics of porous and powder materials the system of equations comprising
the pyramid yield criterion together with the stress equilibrium equations under conditions of
axial symmetry forms a statically determinate system at edge regimes. The results presented
here for this system are consequently independent of any flow rule that may be chosen to
calculate the deformation and also independent of whether elastic strains are included. The
stress equilibrium equations are written relative to a coordinate system in which the coordinate
curves coincide with the trajectories of the principal stress directions. Then, a method of finding
the trajectories of the principal stresses is developed.
2018 NHA TRANG CONFERENCE
- 62 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C3009 Presentation 12 (15:45~16:00)
A Semi-Analytic Stress Solution for Elastic/Plastic FGM Discs Subject to External Pressure
Sergei Alexandrov, S Usov and T Nguyen-Thoi
Beihang University, China; Institute for Problems in Mechanics, Russia; Ton Duc Thang
University, Vietnam
Abstract—A new semi-analytic plane stress solution for the elastic/plastic distribution of stress
in a thin annular disc subject to pressure over its outer radius is presented. The yield stress
varies along the radius of the disc and is a monotonically decreasing function of the radius. It is
shown that the general solution consists of several stages and the general structure of the
solution depends on material and geometric parameters. An example illustrating the general
solution is provided.
2018 NHA TRANG CONFERENCE
- 63 -
Afternoon, February 24, 2018 (Saturday)
Time: 13:00~16:15
Venue: Jupiter 2 Room
Session 3: 13 presentations- Topic: “Material Science and Civil
Engineering”
Session Chair: Prof. Rudolf Hela
C3002 Presentation 13 (16:00~16:15)
Fabrication of Activated Charcoal Adsorption Bi2O3/TiO2 Composite Powders and the Study
of Their Photocatalytic Activity
Zhifu Wu and Liyun Hu
Baise University, China
Abstract—A visible light-driven activated charcoal adsorption Bi2O3/TiO2 composite
photocatalyst was prepared by an sol–gel method in which activated charcoal acted as a
adsorption to capture metal ions by reacting with bismuth and titanium sources via a
complex polycondensation pathway. The phase and particle size of the photocatalyst were
characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM).The results
revealed that adsorption of Bi2O3 / TiO2 composite powder with activated carbon is not easy
to agglomerate and sinter during the preparation and calcination process, and it has the
advantages of good dispersibility, less agglomeration and uniform particles. The
photocatalytic activity of the as-prepared catalyst was evaluated by degradation of methylene
blue under visible light irradiation. The results showed that the decomposition rate of
methylene blue was 93% at 50 min catalyzed by composite powder.
16:15-16:30 Coffee Break
2018 NHA TRANG CONFERENCE
- 64 -
Session 4
Tips: The schedule for each presentation is for reference only. In order not to miss your presentation,
we strongly suggest you attend the whole session.
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0007 Presentation 1 (16:30~16:45)
Assessment of Ecosystem Impacts by Engineering Measures Using the Concept of Building
with Nature
Chien-Yuan Chen and Cr Ku
National Chiayi University, Taiwan
Abstract—A field investigation monitored a river restoration indicator, Kandelia, following
the idea of Building with Nature (BwN). The main objective of the present study is to
understand the relationship between Kandelia growth areas and river patterns; such an
understanding can support river watershed management after engineering measures have
altered rivers. The fitness-existence of Kandelia was evaluated through measurements and
numerical simulations of river discharge, flow velocity, and depth of the river flow. The
ecological survey results showed that although the quantity of Kandelia exhibited periods of
growth and decline, the overall quantity did not change substantially. Even though the
growing area shrank, the number of Kandelia plants did not decline and the biomass density
increased. The flow rate was less than 0.4 m/s, equivalent to static. The numerical
simulations indicated that the downstream sandbar area favored the growth of Kandelia, even
under floodwater after typhoons had brought rain. When typhoons bring rain, the upstream
has a high flow rate, which is not conducive to plant growth. A 5S model and a SWOT
analysis were used for a comprehensive analysis. The indicator Kandelia is a local ecosystem
index of environmental impacts after engineering measures have been conducted. The results
may be used as a reference for river watershed engineering planning and to enhance the
concept of BwN.
2018 NHA TRANG CONFERENCE
- 65 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0012 Presentation 2 (16:45~17:00)
Effect of Waste Expanded Polypropylene-Based Aggregate on Mechanical and Thermal
Properties of Lightweight Concrete
Martina Záleská, Milena Pavlíková, Jiří Studnička and Zbyšek Pavlík
Czech Technical University in Prague, Czech Republic
Abstract—Resource efficiency and building energy consumption is in recent years an open
question for construction industry. Recycled plastic aggregate can be used as an alternative
aggregate to produce lightweight concrete with low environmental impact of both concrete
and waste plastic and moreover, the obtained lightweight concrete is characterized by
improved thermal insulation properties. In the present study, waste expanded polypropylene
(EPP) aggregate is used for partial replacement of natural aggregate to produce lightweight
cement-based composites containing synthetic coagulated amorphous SiO2 as supplementary
cementitious material. For the applied EPP, basic physical properties were measured and
specific attention was paid to thermal transport and storage properties that were studied in
dependence on compacting time. The effect of EPP content on the mechanical characteristics
and on the thermal properties of developed material was investigated for 28 and 90 days
water cured samples. Composite with incorporated EPP aggregates exhibits enhanced
thermal insulation properties with sufficient mechanical resistance and can be considered as
promising material for building subsoil or floor structures.
2018 NHA TRANG CONFERENCE
- 66 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0016 Presentation 3 (17:00~17:15)
Thermal Stability of Lightweight Concrete with Incorporated Regranulated Polypropylene
Aggregate
Lenka Scheinherrová, Martina Záleská, Milena Pavlíková and Zbyšek Pavlík
Czech Technical University in Prague, Czech Republic
Abstract—Plastic waste and its low recycling rate make a significant contribution towards
the pollution of the environment. Therefore, it is essential that plastic waste is utilised in
different applications, such as aggregates in concrete. Since the coefficient of thermal
expansion of polypropylene (PP) is significantly higher than for the ordinary concrete, the
resulting mismatch in thermal expansion behaviour of the lightweight concrete can cause
many problems, especially when the external temperatures reach the higher values. In this
paper, an investigation of a manufactured plastic aggregate as a partial replacement for
natural silica aggregate in concrete is presented. For concrete manufacturing, regranulated
polypropylene (R-PP) waste coming from PP pipes production was used for the partial
replacement of silica sand in concrete mix composition by 10, 20 and 30 mass %
respectively. The studied materials were heated up to 120 °C. The basic physical properties
before and after thermal treatment were studied. To analyse the thermal strain and the
coefficient of thermal expansion of the studied materials, the horizontal thermodilatometry
was applied.
2018 NHA TRANG CONFERENCE
- 67 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0018 Presentation 4 (17:15~17:30)
Disaster Resilience: A Sustainable Way for Niue
Anthony Freddie and Shenuka de Sylva
Victoria University of Wellington, New Zealand
Abstract—The increasing frequency of natural hazards and disasters, due to climate change,
severely compromises Niue’s fragile economy and its future as a sovereign nation.
Sustainable measures to building resilience and preventing natural hazards from turning into
disasters are urgently needed to reverse Niue’s population decline. Urban renewal and
development projects formulated based on individual’s experiences, outdated attitudes and
approaches, or research conducted through pan-Pasifika and western lenses, and without the
necessary policy controls, have severely compromised the safety of people and property.
The dearth of research on sustainable and resilient planning, design and building practices,
suited to the unique conditions of Niue and its people aggravate this situation. The paper
presents traditional solutions and key findings from community-based studies conducted in
Niue and from disaster preparedness and community resilience research in the Asia Pacific
region. Using a case study approach the paper discusses new and sustainable solutions,
methods and materials that are economically viable and practical, and resonate with local
people, traditions, practices and the place. The aim of the paper is to demonstrate the
opportunities that exist locally for devising and designing sustainable solutions to Niue’s
problems.
2018 NHA TRANG CONFERENCE
- 68 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0022 Presentation 5 (17:30~17:45)
The Effects of Windows and Reduced Night Temperature on the Heating Energy Demand in
Different Regions of Russia
Zoltan Pásztory, Galina Gorbacheva, Daniel Czimondor, Péter Rébék-Nagy, Victor Sanaev,
Stanislav Rykunin, Imre Czupy and Zoltán Börcsök
University of Sopron, Hungary
Abstract—An energetic model of a typical log home was placed in ten different regions of
Russia and examined the yearly heating energy demand. The building was supplied with
three different types of windows to demonstrate the effect of windows on the heating energy
demand. In a 108 m2 building, changing the 3.5 W/m2K thermal insulation capacity
windows to 1.4 W/m2K and 0.7 W/m2K windows caused an energy saving of 11.9% and
15.9% heating energy respectively. In a heated space reducing the night temperature by 2
degrees Celsius can result in only a 2.7% (1 865 kWh) saving in the colder Magadan region,
while in the Mediterranean Krasnodar, there was a 4.48% (1 151 kWh) saving of the net
heating energy amount. Calculations estimated that Russia possesses a very significant
heating potential savings.
2018 NHA TRANG CONFERENCE
- 69 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0023 Presentation 6 (17:45~18:00)
Tradition, Modernity and Authenticity of Architecture in China and Japan During the 20th
Century
Zeyang Yu
Huazhong University of Science and Technology, China
Abstract—With the globalization, China and Japan had struggled how to handle the
relationship between tradition and modernity. The process of modernity also leads to the
questioning of “authenticity” in their architecture. This essay evaluates the relationship of
tradition, modernity and authenticity in these countries, based on the essence and form,
during the 20th century.
2018 NHA TRANG CONFERENCE
- 70 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0035 Presentation 7 (18:00~18:15)
BIM for Existing Buildings: Potential Opportunities and Barriers
Md Aslam Hossain and J K W Yeoh
Nazarbayev Univeristy, Kazakhstan
Abstract—Building Information Modelling (BIM) can play a significant role for better
operation and maintenance (O&M) and building facility management (FM) through the use
of Information and Communication Technologies (ICT) tools. However, most of the existing
buildings have no BIM. Research in creating BIM for existing buildings has received
growing attention in recent years. It is evident from current literature that generating BIM for
existing building is complex, tedious, time consuming and costly. The objective of this
project is to explore potential opportunities and barriers in constructing BIM for existing
buildings. Different techniques used in capturing building data such as imaging, 3D scanning,
Ground Penetration Radar (GPR), 2D scanned plans and so on, have their pros and cons in
terms of high modelling/conversion efforts necessary to construct a semantically rich BIM.
Moreover, most of these techniques are complex; require expert knowledge; core steps are
still manual; face challenges in handling occlusions/uncertain data; and BIM conversion
becomes cumbersome with the BIM’s increasing level of detail (LoD). A systematic analysis
is done on various techniques used in data capturing and how they are converted into a
semantically rich BIM, accuracy of the converted model, interoperability of the generated
BIM in terms of functionality, potential barriers in the automation process and how they can
be overcome.
2018 NHA TRANG CONFERENCE
- 71 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0046 Presentation 8 (18:15~18:30)
Lock-Brick System for Sustainable and Environment Infrastructure Building Materials
Susilawati Cicilia Laurentia and Indah Wahyuning Tyas
Flores University, Indonesia
Abstract—The community participation is expected to realize the appropriate housing. But
the financial condition does not support, so that appropriate housing to be half constructed,
which eventually became jammed unsustainable. Lock-brick system building construction
can be implemented for appropriate housing and water infrastructure, such as small ponds
and retaining wall construction. Lock-bricks are made from soil as the main ingredients
added a little cement, thoroughly mixed in dry conditions, has dampened with water to a
level sufficiently moist. Then, pressed with a pressing machine to 60%, forming interlocked
bricks when arranged to form the walls of the liveable house. Columns, beams or retaining
walls can be constructed with this system. Similarly, other water basin infrastructure such as
rainwater catchers-canals can be constructed with this system. Lock-brick systems are used
for a wide range of building infrastructure while considering the strength of the structure, so
as to meet the standards. Various examples of usability have been done for the simple
building liveable housing, student dormitories building, rain water reservoir, runoff
catchment canals, soil retaining walls, and pavement floor. The usability, simple, easy to
make and cheap, making this lock-brick system can support the development of sustainable
infrastructure and built environment.
2018 NHA TRANG CONFERENCE
- 72 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0054 Presentation 9 (18:30~18:45)
Plant Species Selection Based on Leaf Vibration Experiments
Mengmeng Li and Jian Kang
Harbin Institute of Technology, China
Abstract—Noise pollution is exacerbated by the rapid urban development. Noise has a serious
impact on both people's life and the cities' ecological environment. The noise should be
controlled immediately. Plants are one of the natural noise-reducing materials, which become
increasingly important and popular. In urban landscape design, it is very important to select
the plant species which have good noise reduction effect. The aim of this paper is to find out
the characteristics of the plants with good noise reduction effect and apply it in urban
landscape design. In this study, an experiment of sound attenuation by plants focusing on leaf
vibration is carried out. This study investigates the vibration of leaves of 6 plant species in a
sound field using a Keyence (IG- 1000 /CCD) Laser Micrometre. The results show that the
vibration amplitudes of plant leaves increase significantly by about 4-12 μm after being
stimulated by sound. In addition, driven by the same sound, the amplitudes of all leaves
varied with the difference of leaf thickness, leaf size and leaf mass. The amplitudes of all
leaves increase with the increase of leaf size and leaf mass, while decrease with the increase
of leaf thickness.
2018 NHA TRANG CONFERENCE
- 73 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0055 Presentation 10 (18:45~19:00)
Agent-Based Simulation on Pedestrian Flow Capacity of Narrow Space
Shi Sun, Cheng Sun and Kai Xing
Harbin Institute of Technology, China
Abstract—The narrow space in the urban pedestrian traffic system is the area which is more
liable to be congested. At present, researches on the maximum pedestrian flow of space
mainly focus on the width of the exit, but there are not sufficient researches on the walking
space with a certain length. The purpose of this paper is to analyze the change of pedestrian
flow capacity of the narrow space with a certain length under the influence of width. The
simulation model of walking behavior was established by Net Logo software. By changing
the space width and the number of pedestrians entering into the space per unit time, the
quantitative relationship between the width of space and the space pedestrian flow capacity
was simulated. In the simulation, the pedestrians' walking behavior is influenced by the target
area, the space boundary and the visible surrounding pedestrian density. The results show
that when the length of the walking space is 30 m and the space width is less than 10.33 m,
the increase of the width will significantly improve the pedestrian flow capacity of the space.
When the space width is more than 10.33 m, the increase of the width will enhance the
pedestrian flow capacity less significantly. The research results can be applied to the design
of the width of urban long and narrow walking space.
2018 NHA TRANG CONFERENCE
- 74 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0056 Presentation 11 (19:00~19:15)
Thinking about the Contradiction of Space Use of Square Dance in Chinese Cold Cities
through Newspaper Reports
Xiaobing Liu, Xiaolong Zhao and Bo Zhang
Harbin Institute of Technology, China
Abstract—The square dance is one of the most popular new physical activities in China in
recent years, and has become the hotspot of Chinese garden research. This study attempts to
interpret the space use contradiction of square dance from the angle of newspaper report, and
then make up the deficiency of the planning designer's understanding of square dance space.
We collected 749 news reports in 8 years of four authoritative newspapers in Harbin, and
probed into the square use contradictions of usability, accessibility and climate environment
of square dance. We hope to provide the content basis for future social science research in the
field of planning and design, and provide the direction for technical research.
2018 NHA TRANG CONFERENCE
- 75 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 1 Room
Session 4: 12 presentations- Topic: “Construction and Urban Engineering”
Session Chair: Prof. Chien-Yuan Chen
C0052 Presentation 12 (19:15~19:30)
Ledras (Ledra Street): Discovering It’s Visible and Invisible Multiple Layers
Gizem Ozturk
Near East University, Cyprus
Abstract—Today, historic preservation and re-use of historic sites are common techniques in
urban development process of cities with rich historical background, which creates many
contradictions and architecturally aesthetical problems. Architects should try to find ways to
understand the problems underneath them and suggest a technique with a continuous
outcome. Researching the multiple layers of this study area will help to discover the
time-space relationship of the existing environment.
Prof. Dr. Semra Aydinli states at her presentation in Boston “Enmeshed experience
motivates us to grasp the multi-sensory qualities of the existing environment. Every place
that has specific spatiality in Istanbul establishes a different integrity for production of
sensation because of its major changes in life and enmeshed experience.”
The disconnection between heritage and contemporary leads this research to search for
possible ways to maintain the environmental value of the Cyprus’ architecture in terms of
quality, continuity, and aesthetical experience. Every historic building, their surrounding, and
society carries its own aesthetical value and identity. The island’s built environment is rich in
variety and each nation has its own unique spatiality in its context. Therefore it is inevitable
to not to come across with enmeshed experiences through a detailed research at any of the
historic quarters of Cyprus. Places contains enmeshed experiences and cultural codes, with
the intention that in this research the chosen method is the bodily experiencing to point out
the identity of the area to identify a new conception of sense and to produce new events.
Bodily experience of Ledra is supported with photography, and maps.
2018 NHA TRANG CONFERENCE
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Session 5
Tips: The schedule for each presentation is for reference only. In order not to miss your presentation,
we strongly suggest you attend the whole session.
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0017 Presentation 1 (16:30~16:45)
Performance of Concrete Blended with Inhibitors and Slag Exposed to Chloride Environment
Anita N Borade and B Kondraivendhan
S.V. National Institute of Technology, Surat, India
Abstract—In this paper, the performance of concrete with organic inhibitor and slag on
compressive strength and chloride penetration resistance were studied for different
water/binder (w/b) ratios and different curing ages. Organic inhibitor (Amines) was admixed
with cement during the manufacturing process itself of the cement named as corrosion
resistance cement (CRC). The influence of this cement on compressive strength was studied
over different curing ages such as 7, 28, 56, 90, 180 and 360 days. Rapid chloride penetration
test (RCPT) was conducted to explore the resistance to chloride penetration. Half-cell
potential was observed for the period of one year as a measure of corrosion tendency of
reinforced concrete (RC) exposed to 3%, 5% and 7.5% of sodium chloride (NaCl) solutions.
The results of the concrete with inhibitor (CRC) were compared with the concrete with
Portland slag cement (PSC). Significant improvement was observed in compressive strength
with increase in curing ages. The performance of CRC concrete shows remarkable
improvement in corrosion potential (delayed corrosion initiation) as compared to PSC
concrete.
2018 NHA TRANG CONFERENCE
- 77 -
Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0019 Presentation 2 (16:45~17:00)
Anticorrosion Effect of Silane Type Surface Penetrants on RC Degraded by Carbonation
Takuya Kondo, Yuka Kadota, Yusuke Kawanishi, Yoshihiko Nakamoto, Katsunori Yokoi and
Yuji Yamada
National Institute of Technology, Kochi College, Japan
Abstract—We studied on the anticorrosion effect by applying silane type surface penetrants
on RC degraded by carbonation. Two types of carbonation residue and two types of
environmental conditions after accelerated carbonation were prepared and investigation was
made on the corrosion behaviour of reinforcing bars by applying surface penetrants. As a
result, by blocking water penetration by applying surface penetrants, there was a difference in
anticorrosive effect in the behaviour of half-cell potential, polarization resistance, and
investigation of reinforcing bar corrosion after the end of exposure. From the above, this
paper reports on the possibility of realizing anticorrosion effect by suppressing invasion of
moisture from concrete surface to carbonated RC.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0021 Presentation 3 (17:00~17:15)
Experimental Study on the Properties of Artificial Lightweight Aggregate Concrete
Reinforced with Carpet Waste Fiber
Yanuar Haryanto, Gathot Heri Sudibyo and Nanang Gunawan Wariyatno
Jenderal Soedirman University, Indonesia
Abstract—Lightweight concrete is a low-density concrete that can be made by replacing
coarse aggregate with artificial lightweight aggregate such as bloated clay, crushed bricks, or
coarse fly ash. This paper presents a study of the influence of carpet waste fiber on the
properties of artificial lightweight aggregate concrete. Tests are performed on 30 concrete
cylinders of 150 mm in diameter and 300 mm in height with various additions of carpet waste
fiber, namely 0%, 0.25%, 0.50%, 0.75%, and 1.00%. Superplasticizer is added at 2% of
cement weight for convenience of casting. We find that using artificial lightweight aggregate
can reduce concrete density to a maximum of 1.94 t/m3. The compressive strength of artificial
lightweight aggregate concrete increases by 17.22% with addition of 0.44% carpet waste fiber,
while the split tensile strength of artificial lightweight aggregate concrete increase by 75.18%
with addition of 0.85% carpet fiber.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0009 Presentation 4 (17:15~17:30)
Development of Compressed Stabilized Earth Block as an Eco-Friendly and Sustainable Wall
Making Material
Chao-Lung Hwang, Mitiku D. Yehualaw and Trong-Phuoc Huynh
Can Tho University, Vietnam
Abstract—This experimental study investigates the develop-ment of compressed stabilized
earth block (CSEB) as an eco-friendly and sustainable wall making material. In the study,
three different types of stabilizers of cement, lime, and wood ash with 5%, 10%, and 15%
replacement of soil are used as stabilizers. Moreover, lime and wood ash were blended with
cement with 2.5%, 5%, and 7.5% of each in order to improve their efficiency. The CSEBs
with dimensions of 300×150×100mm were prepared and cured for 28 days. Finally, the
compressive strength, density, and water absorption of the CSEB were analyzed. Cement
stabilized blocks had the better compressive strength and density and low water absorption
rate but cement is environmentally unfriendly and consumes energy. Lime stabilized blocks
showed good compressive strength and density but high water absorption. While wood ash
stabilized blocks exhibited the poor strength and density and high water absorption but these
properties were improved when wood ash was blended with cement. As the results, the
optimum proportion was found to be L5C (5% lime and 5% cement) or WA5C (5 % wood ash
and 5% cement).
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0028 Presentation 5 (17:30~17:45)
Effect of High Loss on Ignition-Fly Ash on Properties of Concrete Fully Immersed in Sulfate
Solution
Si-Huy Ngo, Trong-Phuoc Huynh, Thi-Thanh-Tam Le and Thi-Ngoc-Hang Mai
Can Tho University, Vietnam
Abstract—This paper presents the experimental results of an investigation on the engineering
properties and durability of high loss on ignition-fly ash concrete fully immersed in 5%
sodium sulfate solution. The fly ash used in this study is a raw material with the loss on
ignition of 15.8%, which is much higher than the upper limitation of 6% as stipulated by
ASTM C618. Eight concrete mixtures were designed with different water-to-binder ratios of
0.35 and 0.45. For each water-to-binder ratio, the fly ash was used to replace 0%, 10%, 20%,
and 30% amount of cement. Test results show that the workability of fresh concrete
increased, while its unit weight decreased with increasing the fly ash replacement level. In
addition, the concrete mixtures with 10% and 20% fly ash content showed the higher
compressive strength, especially at long-term ages, than that of the fly ash-free concrete
mixture. Further, all of the fly ash concrete mixtures exhibited the good quality with
ultrasonic pulse velocity values of higher than 4100 m/s.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0032 Presentation 6 (17:45~18:00)
Compressive Strength of Concrete with Sewage Sludge Ash (SSA)
Thevaneyan Krishta David and Sivasan Karan Nair
Ungku Omar Polytechnic, Malaysia
Abstract—This study was carried out to determine the density and compressive strength of
concrete using Sewage Sludge Ash (SSA) as combination of cement and fine aggregate
replacement. The SSA suggested replacing the cement in the concrete because it has similar
Pozzolanic properties of Ordinary Portland cement (OPC). Besides that, the particle size of
the SSA after incineration process is similar to the fine aggregate that used in the concrete.
The incineration process of the SSA takes 2 hours at the temperature of 1000oC. The sieving
process will take place after incineration process and the SSA will be used as fine aggregate
replacement. The remaining SSA will be grounded with ball mill and used as cement
replacement. In this study, the compressive strength design by using DOE method to
achieved 30 MPa (target mean strength of 46 MPa) at 28 days. The density of the SSA
concrete has higher value compare to control sample because the incineration at 1000˚C will
increase the density of SSA. Previous study shows that 10% of SSA replaces cement in a
concrete give same compressive strength value as control sample and the acceptable
percentage of fine aggregate is between 10 to 25 percentages. Comparatively, the
compressive strength of concrete when SSA used as combination of cement and fine
aggregate replacement also give higher value compare to control sample.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0033 Presentation 7 (18:00~18:15)
Flexural Strength of Sewage Sludge Ash (SSA) Concrete
Thevaneyan Krishta David and Sivasan Karan Nair
Universiti Teknologi MARA (UiTM), Malaysia
Abstract—Studies about the sewage sludge becoming popular since the sewage sludge can be
treated to produce sewage sludge ash (SSA) which has the potential to replace a percentage
of cement. This study focuses on the flexural strength of the sewage sludge ash (SSA)
concrete for 3, 7 and 21 days of curing relatively to its density. In this study 10 percentages
of SSA was used as a replacement to cement and fine aggregates. SSA had known to exhibits
pozzolanic properties similar to Ordinary Portland Cement (OPC). SSA was also used to
replace the fine aggregates since by products of incineration as the particle size distribution
has similar sizes to fine aggregates normally used in concrete mix. Besides, many studies
also mention that SSA used in concrete may produce lightweight concrete. The SSA was
incinerated at 1000˚C for 2 hours followed by cooling in open air. Some of the SSA was
sieved to be used as fine aggregates and some was grounded to be used as cement. Number
of sample that was prepared for this study was 14 and it was design to achieve compression
strength of 30MPa at 28 days based on DOE method. The flexural strength of concrete for
cement replaced with SSA was lower than the control sample but it has an early flexural
strength. The flexural strength of concrete for fine aggregate replaced with SSA was higher
compared to the control sample.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0034 Presentation 8 (18:15~18:30)
Modified Pervious Concrete Containing Recycled Asphalt Pavement and Waste Tire Rubber
Thevaneyan Krishta David, RS Chandrasegaran and Sivasan Karan Nair
Universiti Teknologi MARA (UiTM), Malaysia
Abstract—Portland Cement Pervious Concrete (PCPC) can reduce the risk of flash flood by
letting the storm runoff to sip through the voids available in the PCPC hence infiltrate into
the soil. This unique ability of pervious concrete offers advantages to the environment, public
agencies, and building owners by controlling rainwater on site and addressing storm water
runoff issues. Thus, this study was conducted to substantiate the usage of inorganic, cheap
and reusable material namely Recycled or reclaimed asphalt pavement (RAP) and Fine
Crumb Rubber (FCR) in pervious concrete. The primary objective of this study is to compare
the compressive strength, density and the surface infiltration rate of pervious concrete
containing waste tire rubber with pervious concrete that is made up by using natural
aggregate without any enhancement. Standard pervious concrete will consist of natural
coarse aggregates and cement. In this study, RAP will be replacing the natural coarse
aggregates, the same size with the previous research. The modified pervious concrete will
also be mixed with a certain percentage of FCR, replacing certain percentage of the coarse
aggregate. The results of this study indicate that using recycled material could achieve
similar performance as using natural aggregate, hence may reduce the construction cost.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0037 Presentation 9 (18:30~18:45)
A Review of Agro-Waste Materials as Partial Replacement of Fine Aggregate in Concrete
Lidia Sommariba Sokolova, Evgeniya Ermakova and Marina Rynkovskaya
Peoples' Friendship University of Russia (RUDN University), Russia
Abstract—An immense amount of agricultural waste is produced while growing, harvesting
and processing goods; which should be treated as a resource for its prevalence and
renewability. While developed countries are concerned with utilization and environmental
issues, developing countries are focusing on the economic factors of social housing,
especially in rural areas. Fortunately, environmental awareness has been raised in the
construction industry by using agricultural waste as partial replacement for fine aggregate,
coarse aggregate, reinforcing materials, cement and binders. This review is an attempt to
collect world-wide data with references for future possibilities estimation of agro waste
application focused on fine aggregate replacement in concrete.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0042 Presentation 10 (18:45~19:00)
Development of an Automatic Crack Inspection System for Concrete Tunnel Lining Based on
Computer Vision Technologies
Cuong Nguyen Kim, Kei Kawamura, Masando Shiozaki and Amir Tarighat
Yamaguchi University, Japan
Abstract—This paper presents an automatic crack inspection system for concrete tunnel
lining based on image processing technique and computer vision. The system includes a
video image acquisition device, an image stitching software, and a crack detection software.
Firstly, the video image acquisition device uses six video cameras and three illuminators
mounted on a steel framework which is capable of sliding from side to top of the inspecting
vehicle to shoot the full surface of the tunnel lining. Secondly, the image stitching software
based on image matching technique was developed to create layout panorama from the tunnel
lining surface images, making it easier to visualize a large and detailed section of the tunnel
lining. Finally, we propose a semi-automatic crack detection software relied on a
combination of image processing technique and interactive genetic algorithm (iGA) to crack
detection for concrete surface images of the tunnel lining. Experimental results demonstrate
the effectiveness of the proposed method.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0049 Presentation 11 (19:00~19:15)
Development of Ultra High Performance Concrete and Reactive Powder Concrete with
Nanosilica
Rudolf Hela, Lenka Bodnarova and Lukas Rundt
Brno University of Technology, Czech Republic
Abstract—The article is dedicated to the design and production of Ultra High Performance
Concrete (UHPC) and Reactive Powder Concrete (RPC) using silica fume and nanosilica.
Nanosilica and fine steel fibres were used for the production of RPC. Compressive strengths
of UHPC and RPC above 150 MPa have been achieved. It has been demonstrated that UHPC
and RPC can be produced using standard concrete mixing system without the use of
activating mixing and without a special treatment regime during maturing of the concrete.
Aging of the concrete took place in a normal environment, without elevated pressure or
temperature. The aging process at 20 °C allows the use of UHPC and RPC for the
ready-mixed concrete when working on high volume construction projects. Even without
thermal treatment, without the application of solidification pressure and without autoclaving,
RPC reached a compressive strength of more than 180 MPa and a flexural tensile strength
after 60 days greater than 22 MPa. The high tensile bending strength may be considered as
the main advantage of RPC, as the RPC parameters allow, for instance, the use for
pre-stressed structural elements where a high initial strength is also required.
2018 NHA TRANG CONFERENCE
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Afternoon, February 24, 2018 (Saturday)
Time: 16:30~19:30
Venue: Jupiter 2 Room
Session 5: 12 presentations- Topic: “Concrete Materials and Technology”
Session Chair: Prof. Zongjin Li
C0065 Presentation 12 (19:15~19:30)
Study on Compressive Strength Prediction on Steam Curing
Nozomi Nakajima, Hiromitsu Koyama, Shin-Ichiro Hashimoto and Shigeyuki Date
Tokai University, Japan
Abstract—Steam curing process is generally adopted for precast concrete products to
improve productivity. For setting reasonable production cycles and selecting economical
formulation, it is important to predict the strength of mortar / concrete at early stage.
Compressive strength estimation by the Maturity method is being widely used in
conventional research. However, it is pointed out that accuracy is relatively low for
estimating the strength of concrete under steam curing condition. Therefore, in this study, a
relation between effective material ages based on the Maturity and Arrhenius’s law and both
initial and long-term strength were evaluated. As a result, it was confirmed that the
Arrhenius's law shows higher estimation accuracy than the Maturity method. Furthermore, it
was confirmed that the prediction method using effective material ages based on the
Arrhenius’s law which takes the activation energy into consideration has higher estimation
2018 NHA TRANG CONFERENCE
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Poster Session
February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
C0010 Poster 1
The Effect of Different Heights and Angles of Energy Director on Interface Temperature for
Ultrasonic Welding of Thermoplastics
Thang Nguyen Vo and Petr Lenfeld
Technical University of Liberec, Czech Republic
Abstract—Besides technological parameters in the ultrasonic welding process, height and
angle of energy director (ED) also affect the quality of the joint strength owing to its energy
transfer and melting. This paper deals with evaluating the effect of distinct ED heights and
angles of butt-joint on temperature distribution at the weld interface. Experiments were
simulated using transient thermal analysis of Ansys 18 for 3D-samples made of acrylonitrile
butadiene styrene (ABS) and high-density polyethylene (HDPE). The results obtained from
simulation of temperature distribution in various ED heights and angles and welding
amplitudes are presented and compared with each other.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
C0026 Poster 2
Structural Performance Evaluation of a Precast PSC Curved Girder Bridge Constructed Using
Multi-Tasking Formwork
Sung-Jae Kim, Gi-Ha Eom and Jang-Ho-Jay Kim
Yonsei University, South Korea
Abstract—The objective of this study is to verifying the safety and serviceability of the
precast PSC curved girder with a hollow cross-section using the Multi-tasking formwork.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
C0031 Poster 3
TENG Output Enhancement for Wind Energy Harvesting Using Nanocones PDMS
Nghia Dinh Huynh, Wook Kim, Hee Jae Hwang, Kwun-Bum Chung, Dongseob Kim and
Dukhyun Choi
Kyung Hee University; Korea Institute of Industrial Technology (KITECH); Dongguk
University, South Korea
Abstract—Triboelectric nanogenerator (TENG) is an up-and-coming technology operates
based on the triboelectrification and electrostatic induction to generate the electricity from
various mechanical energy sources. Even though TENG has high power conversion efficiency
in many previous studies but still demand a significant improvement of the output
performance, so the optimization of some key parameters such as tribo-material selectivity,
surface contact area, and nanopatterned morphology is very crucial. Here, we focus on the
output enhancement of TENG based on anodic aluminum oxide (AAO) as a mold and
nanocones polydimethylsiloxane (NC-PDMS) film with simple and cost-effective fabrication
process, high output performance, and long-term stability by soft-lithography technique. The
TENG output improvement is based on the optimization of the structure dimensions of
NC-PDMS distributed on its surface. Follow that varying period and diameter of NC-PDMS
surface is theoretically and experimentally investigated. For the theoretical study, the
NC-PDMS is considered as a viscoelastic material. By this simulation, we calculate the
contact stress for NC-PDMS layers and compared the behaviors by considering the contact
area and stress together (i.e., the product of contact area and stress, called as a contact force).
As the result of a simulation study, the calculated and the experimental data are well matched.
Furthermore, an optimal NC-PDMS with the period and diameter of 125 nm and 60 nm,
respectively, exhibit the open-circuit voltage (Voc) of 568 V and short-circuit current (Isc)
value of ~ 25.6 µA under 10 N pushing force and 5Hz of pushing frequency. The
enduringness test of the TENG device is also conducted to confirm the mechanical stability
and durability. For the windmill integrated TENG model device, the optimal NC-PDMS is
also used and obtained the Voc and Isc values of ~ 200 V and ~ 24 µA, respectively, at the
wind speed of 14-15 m/s.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
Y0002 Poster 4
Synthesis of Cyclic Carbonates from Epoxides and CO2 Using Cu(II) Tryptophan MOF as a
Catalyst
Gyeong-Seon Jeong, Ga-Hyung Kim, Hee-Chul Woo, Kwang-Sun Huh, Dong-Ok Lim and
Dae-Won Park
Pusan National University, South Korea
Abstract—Carbon dioxide is an abundant, non-toxic and thermodynamically stable C1
feedstock. Engaging them for the synthesis of five-membered cyclic carbonates represent an
attractive means of CO2 utilization while viewing from an atom-economic perspective and
also for its splendid applications such as solvents, precursors for synthesis of polycarbonates,
and intermediates in organic material synthesis. Biologically important natural and
biocompatible materials, such as amino acids consists of amino-carboxylate terminals and
side chains functional groups which provide multiple metal binding site in coordination
chemistry. An amino acid-based copper-tryptophan complex was synthesized by an efficient
direct-mixing method under mild conditions, and characterized using several analytical
methods. An amino acid based metal organic framework (MOF) CuTrp was synthesized using
L-tryptophane as a linker, and it was employed as a catalyst to synthesize cyclic carbonates
from epoxides and CO2 in a synergistic manner with a quaternary ammonium salt co-catalyst
(TBAB). A plausible mechanism involves the penta-coordinated Cu center of CuTrp complex
as an active Lewis acidic site, while the nucleophilic bromide anion from TBAB assists in the
ring opening of the epoxide. Furthermore, the catalyst showed good recyclability even after
three cycles.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
Y0005 Poster 5
KOH-Activation Effect on the Electroactivity of Reduced Graphene Oxide/Fe2O3 Electrodes
Seok Kim, Kyu Suk Hwang and Yongchul Chung
Pusan National University, South Korea
Abstract—For the preparation of attractive electrode materials for capacitors, KOH activation
of cheap and available natural precursors, such as coals and pitch-derived carbonaceous
materials has often been used. Chemical modification of graphene nanosheets by KOH was
examined as a way to enhance the specific capacity of graphene nanosheets in supercapacitor.
This method efficiently develops the micropores, and allows various pore size distributions. It
has been shown that some large values of capacitance obtained with KOH activated carbons
are related with important surface functionality. Also, KOH activation improve the wettability
on the carbon surface and they contribute to an additional pseudocapacitance through the
presence of a large amount of oxygenated groups to carbon surface. We fabricated
Fe2O3/KOH-activated rGO composites using a facile two-step synthesis by homogeneous
precipitation and subsequent reduction of the GO. The total specific capacity of
Fe2O3/KOH-activated rGO was higher than the sum of KOH-activated rGO and nanoparticle
Fe2O3. It is thought that the synergistic effect between Fe2O3 and KOH-activated rGO resulted
in a full utilization of electrolyte ions for good charge transfer.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
Y0008 Poster 6
Steam Reforming of Liquefied Oil Derived from Macro Algae over Ni/Mg/Al
Hydrotalcite-Type Catalyst
Yong Beom Park, Hankwon Lim, Hee Ju Ahn and Hee-Chul Woo
Pukyong National University, South Korea
Abstract—Currently, hydrogen is mainly produced from a wide variety of fossil fuels such as
coal, natural gas, petroleum by-products and waste. Hydrogen from renewable resources, such
as biomass, exhibits a promising prospective. Biomass would strongly contribute to
decreasing greenhouse gas emissions due to neutral CO2 balance. Macro algae (seaweed
biomass) have the advantages of high productivity and low CO2 emission compared to land
biomasses, which can be used as a potential source of next generation biomass.
In order to produce hydrogen, we study steam reforming of liquefied oil from macro algae.
Macro algae have high H2O content over about 80%, which it is one of most suitable biomass
for converting to liquefied oil by hydrothermal liquefaction. We investigate the catalytic
performance of Ni/Mg/Al hydrotalcite-type catalyst for steam reforming of liquefied oil
derived from macro algae. The effects of chemical composition on the structure and catalytic
behavior of Ni/Mg/Al catalysts were investigated.
The operating steam reforming conditions were as follows: reaction temperature, 873-1173 K,
liquid hourly space velocity, 0.5-4, steam to carbon (S/C) ratio, 5-30. The catalysts were
reduced in the reactor prior to each reforming reaction under 10% H2/N2 flow for 5 h at 773
K. The gaseous products were analyzed by on-line gas chromatography (HP5890) system
equipped with Hayesep DB column.
2018 NHA TRANG CONFERENCE
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February 23 & 24, 2018 (Friday & Saturday)
Time: 12:55~17:00 & 8:45~19:30
Venue: Apollo 1 & Jupiter 1& Jupiter 2 Rooms
Poster Session: 7 presentations
Y2002 Poster 7
Development of Improved Gene Expression Cassette for Glycerol Dehydratase Enzyme in
Pseudomonas Denitrificans
Nam Hoai Nguyen, Thuan Vo Phu Nguyen, Trinh Thi Nguyen, Suman Lama and Sunghoon
Park
Ulsan National Institute of Science and Technology(UNIST), Korea
Abstract—3-hydroxypropioinc acid (3-HP), an important platform chemical, can be produced
from glycerol through a two-step reaction catalyzed by glycerol dehydratase (GDHt) and
3-hydroxypropionaldehyde dehydrogenase (ALDH). When these enzymes are highly
expressed from multi-copy plasmid(s), recombinant microorganisms can produce 3-HP
efficiently. However, for industrial purposes, the enzymes should be expressed from the
chromosome. In this study, using the recently-discovered novel promoter which is induced by
the target product 3-HP, expression cassette for a GDHt was developed. Gene expression was
modified at transcriptional and translational levels, and the expression efficiency was
evaluated by RT-PCR, protein production, and/or enzyme activity measurements. The GDHt
expression/activity, under both non-induced and induced conditions, could be varied in a wide
range by proper combination of the gene expression control methods.
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One Day Visit February 25, 2018 (Sunday) 9:00~17:00
(Tips: Please arrive at LIBERTY CENTRAL NHA TRANG HOTEL before 9:00 a.m. The following schedule
is only for participants who registered the visit & tour. The following places are for references, and the
final schedule should be adjusted to the actual notice.)
1. (9:00) Assemble at LIBERTY CENTRAL NHA TRANG HOTEL
2. Visit Nha Trang Cathedral
Built between 1928 and 1933 in French
Gothic style, complete with stained-glass
windows, Nha Trang Cathedral stands on a
small hill overlooking the train station. It’s
a surprisingly elegant building given that it
was constructed of simple cement blocks.
Some particularly colourful Vietnamese
touches include the red neon outlining the
crucifix, the pink backlighting on the
tabernacle and the blue neon arch and white
neon halo over the statue of St Mary.
3. Visit LongSon Pagoda
Long Son Pagoda, also known as Chua
Long Son, is situated on the foothill of
Trai Thuy Mountain in the city of Nha
Trang. The temple is famous for its
large white Buddha image, which sits
atop the mountain crest and can be seen
from anywhere in town. Built in 1886
in the style of Taoist architecture, Long
Son Pagoda has been home to many
high-ranking Buddhist monks and the
Vietnam Buddhist Studies Foundation
was founded here in 1936.
After being destroyed by a cyclone in
1990, the whole complex was rebuilt at the present site further down the hill. In its attempt to recreate the
exact replica of the old temple, Long Son underwent many restorations and additions, interrupted at times
by the Vietnam War and civil unrests. The white Buddha image was constructed much later in 1964. Today,
Long Son Pagoda boasts beautiful and unique turn-of-the-century Taoist architecture characterised by the
embellishment of mythical animals and sculptures of Taoist gods. It is also a working monastery complete
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with a school for monks in its grounds. An impressive three-tier roofed entrance, decorated with mosaic
dragons, leads to the large temple grounds decorated by potted topiary.
4. Have Lunch Together
5. Visit PoNagar Cham Towers
Built between the 7th and 12th
centuries, these impressive Cham
towers are still actively used for
worship by Cham, Chinese and
Vietnamese Buddhists. Originally
the complex had seven or eight
towers, but only four remain, of
which the 28m-high North Tower
(Thap Chinh; AD 817), with a
terraced pyramidal roof, vaulted
interior masonry and vestibule, is
the most magnificent.
6. Visit HonChong Promontory
Hon Chong complex has
included large rocks stacking
each other for centuries. This is
a large square rock block lying
on a flat and huge rock. The
side overlooking the sea houses
vast hand-shaped indentations.
The promontory has long
become a tourist spot attracting
tourists to Nha Trang city. Here,
tourists can feel Hon Chong
Promontory as the intersection
of the mountain and sea. Just a few steps, tourists can touch the sea or the foot of the hill. In particular,
going to Hon Chong, tourists also have a chance to hear many interesting stories about the promontory
among charming natural scenery. Hon Chong Promontory is becoming one of the new enchanting tourist
attractions in Nha Trang.
7. (17:00)Back to LIBERTY CENTRAL NHA TRANG HOTEL
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Conference Venue
LIBERTY CENTRAL NHA TRANG HOTEL
http://odysseahotels.com/nhatrang-hotel
9 Biet Thu, Loc Tho, Nha Trang, Vietnam + 84 58 3529 555
Located in the city of blue sea and white sands, Liberty Central Nha Trang is the first
urban resort under Liberty Central brand. Merely after one year opening, the hotel has
become one of the best 4 star hotels in Nha Trang.
Designed for both business and leisure travel, Liberty Central Nha Trang Hotel is ideally
situated in Loc Tho; one of the city's most popular tourist areas. Nha Trang city center
is merely 0.1 KM away and the airport can be reached within 35 minutes. With its
convenient location, the hotel offers easy access to the city's must-see destinations.
The hotel offers perfect blend of local charm & international standard services.
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