3D morphological modeling of concrete using multiscale Poisson polyhedra

Abstract : This paper aims at developing a random morphological model for concrete mi-crostructures. A 3D image of concrete is obtained by micro-tomography and is used in conjunction with the concrete formulation to build and validate the model through morphological measurements. The morphological model is made up of two phases, cor-responding to the matrix, or cement paste and to the aggregates. The set of aggregates in the sample is modeled as a combination of Poisson polyhedra of different scales. An algorithm is introduced to generate polyhedra packings in the continuum space. The latter is validated with morphological measurements.
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Julie Escoda, Dominique Jeulin, François Willot, Charles Toulemonde. 3D morphological modeling of concrete using multiscale Poisson polyhedra. Journal of Microscopy, Wiley, 2015, 258 (1), pp.31-48. ⟨10.1111/jmi.12213⟩. ⟨hal-01096766⟩

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