An application of lattice type models to the prediction of elastic modulus of concrete

Title: An application of lattice type models to the prediction of elastic modulus of concrete
Author(s): J.J. Zheng, X.Z. Zhou, C.Q. Li
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 204 - 211
Total Pages: 8
Nb references: 9
Language: English

Abstract: 
When the interfacial transition zone (ITZ) between aggregate particles and cement paste is considered, concrete should be modeled as a three-phase material at a mesoscopic level. The present paper attempts to apply the lattice type model to predict the elastic modulus of the three-phase concrete with reasonable accuracy. In this method, the mesostructure of concrete is simulated and the lattice type model is employed for the analysis of stress and strain in concrete by taking into account the mechanical properties of each phase constituent of the concrete. The calculated results are verified by comparing with the results obtained from the analytical model and the experimental results obtained from the research literature. Based on the results presented in the paper, the effects of the aggregate area fraction, the elastic modulus ratio of aggregate to cement paste, the elastic modulus ratio of ITZ to cement paste and especially the maximum aggregate size on the elastic modulus of concrete are discussed.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00