Early age behaviour of concrete nuclear containments

Title: Early age behaviour of concrete nuclear containments
Author(s): F. Benboudjema, J.M. Torrenti
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Nb references: 13
Language: English

Abstract: Taking into account creep at early-age is essential if one wants to predict quantitatively the induced stresses in concrete structures. Indeed, creep strains may relax internal stresses. In this approach, we use a basic creep model which has been developed previously for aged concrete. This model is then extended to include the effects of hydration, which influences significantly the amplitude of early-age creep. Numerical simulations are performed in order to predict the behaviour of a massive wall. They show that significant relaxation of stresses occur only after about ten days, after cracking occurs. Furthermore, a 3D simulation is necessary in order to be more predictive.

Online publication: 2006-08-02
Classification: 3.2 Theme 2: From Fresh to Hardened Concrete
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.050