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Using recycled waste tyres in concrete paving blocks

Mohd. Nor, Hasanan and T. C., Ling and S. K., Lim (2010) Using recycled waste tyres in concrete paving blocks. Proceedings of Institution of Civil Engineers: Waste and Resource Management, 163 (1). pp. 37-45. ISSN 1747-6526

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Official URL: http://dx.doi.org/10.1680/warm.2010.163.1.37

Abstract

There is general agreement that waste tyres should be better managed in order to preserve valuable resources and prevent environmental damage as a result of improper disposal. This paper describes the use of crumb rubber in concrete paving blocks. Existing block material is characterised as a composite with high compressive strength but with low toughness; the addition of rubber improves toughness while meeting minimum strength requirements. A total of 4300 rubberised concrete paving blocks were produced in a commercial plant, and 348 were tested for compression and abrasion performance, sound absorption, voids and skid resistance. The test results revealed that rubber substitution should not exceed 20% by sand volume in order to avoid excessive reductions in compressive strength. Further investigations showed that sound absorption and toughness were improved as the rubber content in the mix increased. The specimens showed a significant capability for absorbing dynamic loading and resisting crack propagation, which is beneficial for pavements that require good impact resistance properties.

Item Type:Article
Uncontrolled Keywords:recycling & reuse of materials, strength and testing of materials, materials technology
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:27063
Deposited By: Liza Porijo
Deposited On:24 Jul 2012 02:16
Last Modified:24 Jul 2012 02:53

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