EXPERIMENTAL STUDY ON STRENGTH BEHAVIOR OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT WITH SILICA FUME AND COARSE AGGREGATES WITH TYRE

Abstract

A very large amount of waste rubber tire are being generated each year all around the world. Being non biodegradable in nature their recycling is not easy. On burning they produce very toxic and harmful smoke. So the only option is to dump them to landfills. It is also not a proper solution as it takes a lot of space and stockpiles of waste rubber leads to soil pollution and contaminate water bodies along with ground water. Statistics show that every year more than 500 million tires are discarded to landfills, and the estimation is about 5000 million tires would be discarded by 2030. Many research studies has shown that the waste rubber tires could be used in concrete. Concrete with rubber tire has shown reduction in compressive and flexural tensile strength but they do possess some positive aspects as they have better toughness, impact resistance, thermal and sound properties.
The main objectives of this study is to investigate the strength properties of M30 grade concrete by replacing cement with silica fume and rubber tyre aggregates (RTA). The percentage of silica fume and rubber tyre used as 0%SF+0%RT, 5%SF+10%RTA, 10%SF+20%RTA, 15%SF+30%RTA, 20%SF+40%RTA.