Speaker
Description
Elastic modulus of cementitious composites is an important parameter in the design and performance of concrete structures. Its precise estimation remains a challenge due to variable composition of cement pastes. Micromechanical models, based on Eshelby theory provide an effective alternative to predict the same for different types of binders and different watercement ratios. They utilize the intrinsic morphological and constitutive properties of the paste constituents and the physics of their interaction to offer more generic applicability. However, the published literature offers the model application to a specific range of porosities and aspect ratios. Furthermore, comprehensive solution algorithms for such models are hardly encountered. Therefore, the proposed model, prepared in MATLAB, offers a detailed and versatile algorithm to estimate elastic moduli of heterogenous cementitious composites through multiscale micromechanics. The model can be utilized for a wide range of water-binder ratios and binder types and demonstrates excellent agreement with experiments and numerical simulations in the existing literature.
