title: Three-dimensional morphological modelling of concrete using multiscale Poisson polyhedra.
abstract: This paper aims at developing a random morphological model for concrete microstructures. A 3D image of concrete is obtained by microtomography 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, corresponding to the matrix, or cement paste and to the aggregates. The set of aggregates in the sample is modelled 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.
authors.affiliation: Centre de Morphologie Mathématique, Mathématiques et Systèmes, Mines ParisTech, Fontainebleau, France.
authors.forename: J
authors.initials: J
authors.lastname: Escoda
authors.forename: D
authors.initials: D
authors.lastname: Jeulin
authors.forename: F
authors.initials: F
authors.lastname: Willot
authors.forename: C
authors.initials: C
authors.lastname: Toulemonde
keywords: Concrete; granulometry; multiscale materials; random microstructure models