Thermo-hygro-chemo-mechanical modelling of the behavior of a massive beam with restrained shrinkage

Author(s): G. Sciumè, B.A. Schrefler and F. Pesavento
Paper category: conference
Book title: Crack Control of Mass Concrete and Related Issues concerning Early-Age of Concrete Structures
Editor(s): F. Toutlemonde and J.-M. Torrenti
Print ISBN: 978-2-35158-125-4
e-ISBN: 978-2-35158-126-1
Publisher: RILEM Publications SARL
Publication year: 2012
Pages: 133 - 144
Total Pages: 12
Language: English

Abstract: The behaviour of concrete during hydration is very complex especially in the early hours of curing. The relevant parameters depend in a non-linear manner on the hydration degree. We present a thermo-hygro-chemo-mechanical model for concrete at early age and its numerical solution. The mathematical model is coupled (thermo-hygro-chemical behavior inducing the mechanical one) and has been implemented in Cast3M, the finite elements code developed by the CEA (the French Atomic Agency). The primary variables of the model are: the capillary pressure Pc, the gas pressure Pg, temperature T and the displacements vector u. The model parameters depend on two internal variables: hydration degree and mechanical damage, which are associated to the evolution of hydration and mechanical damaging.

Online publication: 2012-07-20
Publication Type: full_text
Public price (Euros): 0.00