Abstract
The purpose of the current article is a micromechanical-based model predicting the elastic properties of cementitious composites exhibiting low elasticity moduli. The model is generalized to composites made of a matrix in which are embedded various spherical concentric inclusions of different radi and properties.
For a given type of aggregate, the grain size distribution is divided into 1 000 discrete elements which volume fractions are determined by linear interpolation.
The following input data needs to be known: the elastic properties, the volume fractions of each phase, and the grain size distribution of each aggregate type. The effective elastic properties of the composite are obtained thanks to a loop-type computation of the analytical model described in this article.
The direct application of this model allows a comparison between experimental and predicted elastic moduli of cement-based mortars made of natural sand and lightweight aggregates.
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Duplan, F., Abou-Chakra, A., Turatsinze, A., Escadeillas, G., Brule, S., Masse, F. (2013). Consideration of Grain Size Distribution and Interfacial Transition Zone in the Prediction of Elastic Properties of Cementitious Composites. In: Kringos, N., Birgisson, B., Frost, D., Wang, L. (eds) Multi-Scale Modeling and Characterization of Infrastructure Materials. RILEM Bookseries, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6878-9_3
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DOI: https://doi.org/10.1007/978-94-007-6878-9_3
Publisher Name: Springer, Dordrecht
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