Properties of Concrete Containing Rubber Aggregate Derived From Discarded Tires

Nguyen Duc Luong, Hoang Vinh Long, Ngo Kim Tuan and Nguyen Duy Thai

Asian Review of Environmental and Earth Sciences, 2017, vol. 4, issue 1, 12-19

Abstract: This study carried out the experiment to evaluate the effects of different contents and sizes of rubber particles derived from discarded tires used for replacing fine and coarse natural aggregates, on the workability of fresh rubberized concrete and the compressive and flexural strengths of hardened rubberized concrete. The study results showed that the workability of fresh rubberized concrete was improved when replacing natural fine aggregate (sand) with fine rubber particles (2.5-5 mm) at the replacing proportions of 30-50% by volume, and when replacing natural coarse aggregate (crushed stone) with coarse rubber particles (5-20 mm) at the replacing proportions of 10-30% by volume. With respect to the mechanical properties of hardened rubberized concrete, a larger reduction in the compressive and flexural strengths was generally found when the replacing proportions increased and when coarse aggregate rather than fine aggregate was replaced by rubber particles at all replacing proportions (10-50%). However, the study results also indicated that using fine rubber particles for replacing fine natural aggregate at the low replacing proportion (up to 10%) might not cause the significant effect on the compressive and flexural strength of rubberized concrete.

Keywords: Discarded tire rubber; Fine and coarse rubber particle; Rubberized concrete; Workability; Mechanical properties. (search for similar items in EconPapers)
Date: 2017
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