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Advances in Materials Science and Engineering
Volume 2015 (2015), Article ID 279584, 10 pages
Research Article

Mesoscopic Numerical Computation of Compressive Strength and Damage Mechanism of Rubber Concrete

1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
2Faculty of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China

Received 19 March 2015; Accepted 22 June 2015

Academic Editor: João M. P. Q. Delgado

Copyright © 2015 Z. H. Xie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Evaluations of both macroscopic and mesoscopic strengths of materials have been the topic of a great deal of recent research. This paper presents the results of a study, based on the Walraven equation of the production of a mesoscopic random aggregate structure containing various rubber contents and aggregate sizes. On a mesoscopic scale, the damage mechanism in the rubber concrete and the effects of the rubber content and aggregate-mortar interface on the rubber concrete’s compressive resistance property were studied. The results indicate that the random aggregate structural model very closely approximates the experimental results in terms of the fracture distribution and damage characteristics under uniaxial compression. The aggregate-mortar interface mechanical properties have a substantial impact on the test sample’s strength and fracture distribution. As the rubber content increases, the compressive strength and elastic modulus of the test sample decrease proportionally. This paper presents graphics of the entire process from fracture propagation to structural failure of the test piece by means of the mesoscopic finite-element method, which provides a theoretical reference for studying the damage mechanism in rubber concrete and performing parametric calculations.