Study on Mechanical Properties and Impermeability of Rubber Concrete

The effects of the size and volumetric content of rubber powder on properties of concrete, including flexural strength, compressive strength and permeability, were studied in this paper. Two different particle sizes (20 meshand 60 mesh) of rubber powder were chosen to replace the sand with volume co...

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Bibliographic Details
Published in:Key engineering materials 2014-10, Vol.629-630, p.467-472
Main Authors: Zheng, Xiu Hua, Zhang, Xu, Zhan, Shi Zuo
Format: Article
Language:English
Subjects:
Compressive strength
Concretes
Flexural strength
Modulus of rupture in bending
Particle size
Permeability
Rubber
Sand
Strength
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Summary:The effects of the size and volumetric content of rubber powder on properties of concrete, including flexural strength, compressive strength and permeability, were studied in this paper. Two different particle sizes (20 meshand 60 mesh) of rubber powder were chosen to replace the sand with volume content of sand as5%, 10%, 15%, 20%, 25%, 30% respectively. The results showed that both flexural and compressive strength of concrete, especially compressive strength, decreased with the increase of rubber content. Moreover, the smaller the particle of rubber powder, the greaterer the strength of the concrete, which was not obvious as effect of rubber powder content on the strength of concrete. The impermeability of concrete increased with the increase of rubber powder content. The electric flux of concrete with 30% rubber powder reduced to about 900 C, which was only 1/5 of that with 5%. At the same content, smaller rubber particle has positiveeffects on the impermeability of concrete. Keywords: rubber concrete,rubber powder, compressive strength,flexural strength, permeability performance.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.629-630.467