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Materials 2016, 9(3), 172; doi:10.3390/ma9030172

Experimental Investigation of the Mechanical and Durability Properties of Crumb Rubber Concrete

1
College of Transportation, Jilin University, Changchun 130025, China
2
Emergency Response Center, Highway Administration of Liaoning Province, Shenyang 110000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Received: 2 February 2016 / Revised: 26 February 2016 / Accepted: 2 March 2016 / Published: 7 March 2016
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Abstract

Recycling waste tire rubber by incorporating it into concrete has become the preferred solution to dispose of waste tires. In this study, the effect of the volume content of crumb rubber and pretreatment methods on the performances of concrete was evaluated. Firstly, the fine aggregate and mixture were partly replaced by crumb rubber to produce crumb rubber concrete. Secondly, the mechanical and durability properties of crumb rubber concrete with different replacement forms and volume contents had been investigated. Finally, the crumb rubber after pretreatment by six modifiers was introduced into the concrete mixture. Corresponding tests were conducted to verify the effectiveness of pretreatment methods as compared to the concrete containing untreated crumb rubber. It was observed that the mechanical strength of crumb rubber concrete was reduced, while durability was improved with the increasing of crumb rubber content. 20% replacement of fine aggregate and 5% replacement of the total mixture exhibited acceptable properties for practical applications. In addition, the results indicated that the modifiers had a positive impact on the mechanical and durability properties of crumb rubber concrete. It avoided the disadvantage of crumb rubber concrete having lower strength and provides a reference for the production of modified crumb rubber concrete. View Full-Text
Keywords: crumb rubber; rubberized concrete; mechanical properties; durability; modifiers crumb rubber; rubberized concrete; mechanical properties; durability; modifiers
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. (CC BY 4.0).

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MDPI and ACS Style

Liu, H.; Wang, X.; Jiao, Y.; Sha, T. Experimental Investigation of the Mechanical and Durability Properties of Crumb Rubber Concrete. Materials 2016, 9, 172.

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