Modélisation chimique de la réaction alcali-silice: prise en compte de l'influence de la distribution granulaire réactive

ABSTRACT Nowadays, knowledge about ASR mechanisms is good enough to prevent new cases. Nevertheless a numerical tool seems necessary for all affected structures. This article deals with a new modelling based on the description of alkalis and calcium transport within concrete. It takes into account the effect of the size and distribution of reactive aggregates. Results from an experimental campaign and corresponding numerical simulations are presented and compared.