2D mechanical percolation in cement pastes at early age

Title: 2D mechanical percolation in cement pastes at early age
Author(s): L. Stefan, F. Benboudjema, J.-M. Torrenti, B. Bissonnette
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: 19
Language: English

Abstract: At early ages the mechanical characteristics of cementitious materials follow a rapid rate of change. The changes that occur within the material at the beginning of its life will influence its later behavior, as the young material can be subjected to important strain development that can lead to crack occurring risk.
The change in Young’s modulus as a function of the degree of hydration is a parameter that we can use in order to develop a predictive model of the early cement paste behavior. In order to do this, we first need a description of the porous space, a hydration model and a percolation approach. Then, several computational methods are used and compared to experimental results.

Keywords: percolation threshold, early age, cementitious materials, computer modeling

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: 10.1617/2351580028.081