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Received: 2006-01-20

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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.101 P.293~296

http://doi.org/10.1631/jzus.2006.AS0293


A numerical method for predicting the elastic modulus of concrete made with two different aggregates


Author(s):  Zheng Jian-Jun, Zhou Xin-Zhu

Affiliation(s):  Faculty of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, China

Corresponding email(s):   jjzheng@zjut.edu.cn

Key Words:  Concrete, Elastic modulus, Lattice type model, Finite element method


Zheng Jian-Jun, Zhou Xin-Zhu. A numerical method for predicting the elastic modulus of concrete made with two different aggregates[J]. Journal of Zhejiang University Science A, 2006, 7(101): 293~296.

@article{title="A numerical method for predicting the elastic modulus of concrete made with two different aggregates",
author="Zheng Jian-Jun, Zhou Xin-Zhu",
journal="Journal of Zhejiang University Science A",
volume="7",
number="101",
pages="293~296",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.AS0293"
}

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%T A numerical method for predicting the elastic modulus of concrete made with two different aggregates
%A Zheng Jian-Jun
%A Zhou Xin-Zhu
%J Journal of Zhejiang University SCIENCE A
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%P 293~296
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.AS0293

TY - JOUR
T1 - A numerical method for predicting the elastic modulus of concrete made with two different aggregates
A1 - Zheng Jian-Jun
A1 - Zhou Xin-Zhu
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 101
SP - 293
EP - 296
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.AS0293


Abstract: 
Experimental and theoretical research showed that in predicting concrete’s elastic modulus, it should be modelled as a three-phase composite material at a mesoscopic level, consisting of aggregates, interfacial transition zone (ITZ) and cement paste, and that the proportions, mechanical properties and interaction of the three phase constituents should all be considered in the prediction. The present paper attempts to develop a numerical method that can predict the elastic modulus of three-phase concrete made with two different aggregates. In this method, the mesostructure of concrete is simulated and the lattice type model is modified to take into account the mechanical properties of the cement paste, ITZ, and fine and coarse aggregates of concrete. The finite element method is then employed for analyzing the stress and strain in concrete and therefore for determining its elastic modulus. Finally, the developed numerical method is verified by comparison with the experimental results obtained from the research literature. The paper concludes that the numerical method can predict with reasonable accuracy the elastic modulus of concrete made with two different aggregates.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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