Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (6): 895-898.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Effects of rubber aggregate on the frost resistance of concrete

Xu, Jin-Hua (1); Feng, Xia-Ting (1); Chen, Si-Li (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; (2) School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Xu, J.-H.
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Abstract: Rubber concrete specimens, made by mixing rubber with two types of grain size and four contents to replace the fine aggregate in the Portland cement concrete, were used for quick freeze-thaw test. This study focused on the durability of rubber concrete under freeze-thawing cycle conditions, which confirms that the concrete strength and dynamic elasticity modulus decrease with the increasing rubber content. It is also found that, appropriate proportion of fine aggregate replaced by the discarded tires powder and grain could improve concrete durability under freeze-thaw actions and the mixture of rubber powder show better performance than that of rubber grain. Especially, mixing 5%~10% rubber powder into concrete can improve resistance to frost obviously, however, the adverse effect for too much rubber is also found. The results reveal that dynamic elasticity modulus can make an accurate assessment to frost resistance of rubber concrete according to non-destructive testing.

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