TY - GEN
T1 - Microstructure Characterization and Micromechanical Modelling of Cement Pastes Hydrated at Different Temperatures
AU - Bahafid, Sara
AU - Ghabezloo, Siavash
AU - Duc, Myriam
AU - Faure, Paméla
AU - Sulem, Jean
N1 - Publisher Copyright:
© ASCE.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The hydration temperature has a considerable effect on the microstructure of cement paste and its mechanical properties. The present work aims to study the influence of hydration temperature on the mechanical properties of cement paste via micromechanical modelling. We will first characterize the microstructure of a class G cement paste hydrated at different temperatures, between 7 and 90°C. Then, the influence of the microstructure variations on the elastic properties of the hardened cement paste will be explored. The analysis of the microstructure enabled determining accurately the volume fractions of different phases present in the microstructure which is an essential input for the micromechanical modelling of its elastic properties. A multiscale self-consistent homogenization model is used based on these results to simulate the variations of the mechanical properties of hardened cement paste with hydration temperature. The results are compared with macro-scale experimental results of uniaxial compression tests.
AB - The hydration temperature has a considerable effect on the microstructure of cement paste and its mechanical properties. The present work aims to study the influence of hydration temperature on the mechanical properties of cement paste via micromechanical modelling. We will first characterize the microstructure of a class G cement paste hydrated at different temperatures, between 7 and 90°C. Then, the influence of the microstructure variations on the elastic properties of the hardened cement paste will be explored. The analysis of the microstructure enabled determining accurately the volume fractions of different phases present in the microstructure which is an essential input for the micromechanical modelling of its elastic properties. A multiscale self-consistent homogenization model is used based on these results to simulate the variations of the mechanical properties of hardened cement paste with hydration temperature. The results are compared with macro-scale experimental results of uniaxial compression tests.
UR - https://www.scopus.com/pages/publications/85026286180
U2 - 10.1061/9780784480779.155
DO - 10.1061/9780784480779.155
M3 - Conference contribution
AN - SCOPUS:85026286180
T3 - Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics
SP - 1249
EP - 1257
BT - Poromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics
A2 - Dangla, Patrick
A2 - Pereira, Jean-Michel
A2 - Ghabezloo, Siavash
A2 - Vandamme, Matthieu
PB - American Society of Civil Engineers (ASCE)
T2 - 6th Biot Conference on Poromechanics, Poromechanics 2017
Y2 - 9 July 2017 through 13 July 2017
ER -