Abstract
There is a huge quantity of waste tyre tubes generated every year due to the increasing of motorcycle user. Therefore, recycling of the waste tyre tubes is become mandatory. The aim of this research was to study the properties of pervious concrete containing scrap tyre tube (STT) rubber particles with percentages of 3%, 5% and 7% of the cement content. The properties studied are void content, compressive strength measured at 7, 14 and 28 days, flexural strength and flow rate which were determined at 28 day. The experimental results showed that, there were increased in void content and flow rate of pervious concrete containing STT. Both compressive strength and flexural strength of pervious concrete containing STT showed a lower value compared to the control mix without STT. The reductions of the mechanical strengths are likely due to the increase of void content. Overall, pervious concrete which contains 7% STT has shown an increment of mechanical strengths and flow rate compared to other STT pervious concrete. Nonetheless, the results indicate that there are potentials for use of STT in pervious concrete, especially for use in pervious concrete applications such as pavements, driveways and parking lots.
Highlights
With the ever increasing vehicles there is a growing need for recycling the waste tyre
This can be seen from the void content of M1 specimen (3% scrap tyre tubes (STT)), which recorded the highest value of 31% has reduced gradually to 30% and 29% for M2 (5% STT) and M3 (7% STT) specimens, respectively
Inclusion of scrap tyre tube rubber particles led to increment in void content and reductions in strengths of pervious concrete
Summary
With the ever increasing vehicles there is a growing need for recycling the waste tyre. The waste tyre generated annually in Malaysia was estimated approximately 57,391 tonnes and about 60% of the waste tyres are disposed via unknown routes [1]. Tyre landfilling is responsible for a serious ecological threat. Waste tyres disposal areas contribute to the reduction of biodiversity the tyres hold toxic and soluble components [2]. Waste tyre management and disposal is a major environmental concern in many countries. Waste tyre management is increasingly becoming a significant environmental, health, and aesthetic problem that is not solved. The use of waste tyres as a concrete additive is a possible disposal solution [3]
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