Abstract
The utilization of steel fiber from waste tyres can be an alternative to reduce waste tyres due to the increase of tyre production in Indonesia annually. Steel fiber from waste tyre can be added to concrete mix to improve the concrete properties. In this study, the effects of steel fiber waste tyre (SFWT) on high strength concrete containing fly ash was investigated experimentally. The content of fly ash in the high strength concrete is 30% of being partially replaced the cement weight. Steel fiber waste tyres are obtained from extracting the steel wire of the waste tyres and then cut into 4 cm long. The addition of SFWT on the high strength fly ash concrete is 0.5%, 1.0%, 1.5%, and 2% by concrete volume. The mechanical properties of concrete such as compressive strength, tensile strength, and flexural strength are tested at day 28. The test results show that the addition of 2 % SFWT on high strength fly ash concrete increase the compressive strength, tensile strength, and flexural strength of the concrete by around 9.99 %, 63.75 %, 18.18 %, respectively.
Highlights
Concrete is the most widely used construction material in the world because of its ability to be formed in various formations and shapes
It can be seen that the compressive strength of high strength fly ash (HSFA) concrete increases as well as the increase of steel fiber content
This is around 9.99% increase compared to the compressive strength of HSFA concrete without steel fiber waste tire (SFWT)
Summary
Concrete is the most widely used construction material in the world because of its ability to be formed in various formations and shapes. Unreinforced concrete is a brittle material, with low tensile strength, limited ductility, little resistance to cracking, incapable of accommodating large deformations, and low impact strength [1,2]. Concrete deficiencies to the tensile strength can be overcome by the addition of fiber in the mix [3]. Utilization of steel fiber from used tires can be an alternative in dealing with environmental problems caused by waste tires that are increasing due to increased tire production every year, especially in Indonesia. As informed by the Entrepreneur Association of the tire in Indonesia (APBI) stated that the sale of tires for four wheels in 2017 is expected to rise to 77-78 million tires. The projection of car tire sales is up 8% compared to the actual sales of tires in 2016
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
