(part 7)1001 solved engineering fundamentals problems-michael lindeburg
TRANSCRIPT
Centre for
Cement Research and
Independent Testing
NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS
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dCEMENTS AND OTHER BINDERS
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Achievements
Establishing Limestone Consumption Factor (LCF)
Meeting delivery schedules and targeted quality
of delivered cement through minimizing/
eliminating lump formation in silos/bags for 6
cement plants.
Utilizing flyash, low grade limestone and additives
in cement manufacturing through optimization of
raw mix design for 40 cement plants.
Achieving desired setting time and early strength
through optimization of clinker quality, PSD and
SO content in two cement plants.
Increasing flyash content in PPC by 5-10 percent
through optimization studies.
Carried out 117 LCF studies resulting in :
- Rationalization of limestone consumption
- Estimating royalty payable to State Government
- Internal material audit in cement plants
Optimization of raw mix design
Utilization of marginal / low grade raw materials in
the manufacture of cement and building materials
Development of newer cements, composite
formulations, alternate binding materials
Improving clinker/cement quality
Maximizing fly ash content in PPC
Investigations on lump formation in cement silos/bags
and remedial measures
Effect of minor constituents on clinker/cement quality
Optimization of SO content in cement
Studies on use of mineralizers in clinkerization
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CEMENTS AND OTHER BINDERS
Optical Microscope for micro-structural evaluation of clinker and rocks
Optical Micrograph of control OPC clinker fired at 1450 C(50x)o
Optical Micrograph of mineralized OPC clinker fired at 1400 C(50x)o
Shotcreting of NCB-Quick set formulation
inside tunnel at a dam site
Lath shapedalite grains
Fused belite
cluster
Perfect hexagonalshaped alite grains withinclusions of mineralizer
and micro grains of belite
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Achievements
Techno-economic feasibility studies on utilization of industrial wastes/ supplementary materials
in the manufacture of OPC and blended cements
Developmental studies on plaster coating, tiles, bricks, blocks, boards, etc. using industrial
wastes such as marble slurry, fly ash, red mud, by-product gypsum, etc.
WASTES UTILIZATION
Waste Materials Benefits based on NCB Studies
Flyash from Thermal Power Plants Increase in utilization up to 8% in PPC manufacture
Lead-Zinc Slag from
Hindustan Zinc Ltd.
Utilization up to 6.0% as cement raw mix component
5% as performance improver in OPC
Copper Slag from
Sterlite Industries Ltd.
Utilization up to 2.5% as cement raw mix component
5% as performance improver in OPC
Steel Slag from Tata Steel Ltd. Utilization up to 2.0% as cement raw mix component
5% as performance improver in OPC
E-cat from il efineryO R Utilization 10 to 15% in manufacture of blended cement
Spent Pot Lining from NALCO Utilization up to 1.5% as cement raw mix component
Marble Dust from Marble Industries Utilization 5 to 15% as cement raw mix component
Limestone Mine Site
Clinker drop test conducted during LCF studies
Refractory kiln furniture utilizing spent catalyst from refinery Ceramic pottery wares spent catalyst from refineryutilizing
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REFRACTORIES AND CERAMICS�
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Premature refractory failures in cement rotary kilns
Damage assessment during shipment of refractories
Quality evaluation of fresh refractories lot at cement / refractory plant
Kiln shell corrosion
Loosening of brick rings in cement rotary kiln during operation
Coating and build-up formation/ring formation
Devitrification studies of slag, alumino silicates, etc.
Refractory-raw mix interaction studies
Diagnostic studies / investigations related to
Refractory management studies and optimization of refractory
lining performance
Development and technology transfer of refractory products
High temperature investigations
Technical suitability of industrial wastes in refractory and ceramic
industries
Achievements
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- Alumina Zircon Refractory (AZR) Bricks for transition zone
- Magnesia Spinelide Refractory Bricks for burning zone
- High Strength Insulating Bricks for preheating zone
- Coating Repellent Castables for build-up prone areas
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- Kiln uptime increase by up to 12%
- Fuel consumption reduction by 2-3%
- Lining performance synchronization for one year
- Trouble free kiln operation
Developed high performance refractory products for cement plants:
Light weight sintered aggregate based on 99.5% industrial wastes for
construction industries
Use of NCB-AZR bricks in rotary kiln improved productivity
by up to 10%.
Trouble shooting services to 20 cement plants with following
benefits:
REFRACTORIES AND CERAMICS
Brick sample from cement kiln at 24m
indicated heavy discoloration due to
infiltration of gases
Corroded rotary kiln shell
Crushed light weight
sintered aggregate
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FUNDAMENTAL AND BASIC RESEARCH
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Exploratory studies related to materials science
Application of nano technology for enhancing the cement quality
Development of novel cement systems and additives
FUNDAMENTAL AND BASIC RESEARCH
INDEPENDENT TESTINGINDEPENDENT TESTING
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Achievements
Facilities
- Performs coding of samples, generation of test reports and data storage and retrieval
- Facilitates smooth and efficient operations in Test House
Complete physical, chemical, mineralogical and micro structural analyses of various types of
cement, clinker, pozzolana, aggregate, concrete, admixtures, water, refractories, bricks,
limestone and other raw materials, coal, lignite, etc as per national and international
standards.
About 7000 samples are tested every year. The samples are mainly from cement
plants, builders and public sector organizations in India as well as from neighbouring
countries.
ISO 9001-2000 and NABL Accredited Laboratories
Laboratory Information Management System (LIMS)
State-of-the-art testing equipment
Flame Photometer Auto Titrator Orbital Shaker
X-RAY DIFFRACTOMETER (XRD)
X-RAY FLUORESCENCE SPECTROMETER (XRF)
FOURIER TRANSFORM IR SPECTROMETER
CHNS ANALYZER
ADIAB TIC BOMB CALORIMETER
U V - VISIBLE SPECTROPHOTOMETER
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Mineralogical and phase analysis of raw materials, industrial
by-products, clinker, cement, aggregates and concrete.
Diagnostic studies on unstable kiln coating, ring formation, build-ups and
kiln shell corrosion.
Chemical characterization of raw materials, additives, clinker, cement,
pozzolanic materials, gypsum, etc.
Fully automatic, computerized and state-of-the-art equipment
Determination of functional groups such as carbonate, sulphate, silicate,
aluminate, etc.
Characterization of cements, admixtures and fuel
Ultimate analysis of various types of fuels for carbon, hydrogen, nitrogen
and sulphur
Computerized and fully automatic instrument
Determination of calorific value of coal and other fuels
Determination of major and minor constituents in cement and other
building materials
Fully automatic and rapid analysis of materials
Pulverizing Equipment Transverse Strength Testing Machine Hardgrove Grindability Test Apparatus
DIFFERENTIAL THERMAL ANALYZER
INDUCTIVELY COUPLED PLASMA SPECTROMETER
HIGH TEMPERATURE FURNACE
AUTOMATIC COMPRESSION TESTING MACHINES
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Thermal behavior of raw materials, kiln feed and fuels up to 1450ºC
Polymorphism of clinker phases
Hydration characteristics of cement
Fully automatic computerized and state-of-the-art equipment
Estimation of toxic and non-toxic elements present in trace amounts in
cements, industrial wastes, water, effluents, etc.
Rapid simultaneous analysis of elements
Fully computerized furnace
Operation up to 1500ºC
Controlled heating and cooling system
Burnability studies and clinkerization
2000, 1000, 350, 100 & 50 kN capacities
Compressive strength determination of cement mortar and concrete
samples
OUR VALUED CUSTOMERS/BENEFICIARIES� � �
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Ministry of Environment and Forests, Govt. of India National Environmental Engineering Research Institute, Nagpur Central Pulp
and Paper Research Institute, Saharanpur Rajashan State Pollution Control Board, Jaipur Hindustan Zinc Limited, Udaipur
Central Pollution Control Board, New Delhi Rajasthan State Minerals Development Corporation, Jaipur State Directorates of
Mines and Geology Dhrangdhra Chemical Works, Dhrangdhra A. P. Government, Hyderabad National Mineral Development
Corporation, Hyderabad United Nations Industrial Development Organisation Indian Oil Corporation, R & D Centre, Faridabad
Thermal Power Plants - Nasik, Panki, Obra, Badarpur, Faridabad, Kota, Dhanu National Aluminium Company Ltd., Bhubaneswar
Reliance Industries Ltd. Sterlite Industries (India) Ltd., Tuticorin Tata Steel Limited, Jamshedpur
OUR VALUED CUSTOMERS/BENEFICIARIES
Mortar Cube Vibrator Flame Phtoto Meter PH / ION Meter
The Director General
NATIONAL COUNCIL FOR CEMENT AND BUILDING MATERIALS34 km Stone, Delhi-Mathura Road, (NH-2), Ballabgarh-121 004 (Haryana)
Tel : 91-129-2242051-56, 2246174, Fax : 91-129-2242100, 2246175
E-mail : [email protected] Website : www.ncbindia.com
Hyderabad UnitNCB Bhawan, Old Bombay Road, Hyderabad - 500 008 (Andhra Pradesh)
Tel : 91-40-23000344, 23000861, Fax : 91-40-23000343
E-mail : [email protected]
Published by S C Rastogi (GM-CIS) and Designed and Printed by Vinod Kumar (Programme Leader-Publication) for and on
behalf of National Council for Cement and Building Materials at Viba Press Pvt. Ltd. - New Delhi-110020
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