ass.-prof. dr.-ing. danièle waldmann-diederich reinforced ...ass.-prof. dr.-ing. danièle...
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Laboratory of Solid Structures LSS
Research in the area of
Solid Structures
at the University of LuxembourgAss.-Prof. Dr.-Ing. Danièle Waldmann-Diederich
Reinforced and prestressed concrete structures
“Structures en béton armé et précontraint”
Research group: 2 PostDocs and 6 PhD students
Laboratory of Solid Structures LSS
Laboratory of Solid Structures
Strategy of Laboratory of Solid Structures
Visibility towards the “outside world”
Integration of UL into Luxembourg
Reference point for industry, engineering consultancies and administrations
Main research subjects
Smart buildings
Smart structures
Demountable structures
Circular economy
aligned with the strategy of the Institute of Civil and Environmental Engineering.
Laboratory of Solid Structures LSS
Research areas
New innovative concrete formulationSubstitution of cement and traditional aggregates by waste or renewable products aiming at a reduction of energy consumption reduction of consumption of natural resources and a reduction of CO2 production
Structural analysis of concrete structures
Analytical, numerical and experimental analysis of reinforced concrete or prestressed concrete
structures
Computational modelling for concrete
Multi-Physics Numerical Simulation of the chemical, mechanical and thermal material behaviour of concrete
Laboratory of Solid Structures LSS
New innovative concrete formulationSubstitution of cement and traditional aggregates by waste or renewable products aiming at a reduction of energy consumption reduction of consumption of natural resources and a reduction of CO2 production
Structural analysis of concrete structures
Analytical, numerical and experimental analysis of reinforced concrete or prestressed concrete
structures
Computational modelling for concrete
Multi-Physics Numerical Simulation of the chemical, mechanical and thermal material behaviour of concrete
Research areas
Laboratory of Solid Structures LSS
New innovative concrete formulation
Concrete based on supplementary cementitious materials
Laboratory of Solid Structures LSS
Recycling of gravel wash mud for CO2 reduced cementThapa & Waldmann (2016-2020)
Publication in TOP10 JournalAssessment of the suitability of gravel wash mud asraw material for the synthesis of an alkali-activated binder. Journal of Applied Clay Science 2018
Gravel Wash Mud GWMboue de lavage = résidu après lavage du sable et des graviers
Calcined GWM powder
Calcination at
750 to 950°C for 60 min
Gravel wash mud (GWM)
Boue de lavage
Dried GWM
Drying at 105°C
for 2 days
Fine & dried GWM
powder
Crushing into
fine powder
Recycling of gravel wash mud for CO2 reduced cementThapa & Waldmann (2016-2020)
Recycling of gravel wash mud for CO2 reduced cementThapa & Waldmann (2016-2020)
2nd Concept: Substitution of ordinary cement by calcined GWM powder
750°C
850°C
950°C
5 %
10 %
15 %
20 %
…
95 %
Dried at 105°C
↓
Grinding
↓
Fine GWM powder
7 days
28 days
56 days
90 days
Recycling of gravel wash mud for CO2 reduced cementThapa & Waldmann (2016-2020)
2nd Concept: Substitution of ordinary cement by calcined GWM powder
Co
mp
ress
ion
str
engt
h
Substitution rate
Scanning electron microscopeMicroscopie électronique à balayage