• Wan Ibrahim, Mohd Haziman
• Senin, Mohamad Syamir
• Shamsuddin, Ir Ts Shamrul-Mar
• Othman, Nurulain
• Leman, Alif Syazani
• Zuki, Sharifah Salwa Mohd

Abstract

Nowadays, uncontrolled disposal of waste materials such as tyres can affect theenvironment. Therefore, careful management of waste disposal must be done in order toconserve the environment. Waste tyres can be use as a replacement for both fine aggregate andcoarse aggregate in the production of concrete. This research was conducted to assess thedurability of concrete containing recycled tyres which have been crushed into fine fragments toreplace fine aggregate in the concrete mix. This study presents an overview of the use of wasterubber as a partial replacement of natural fine aggregate in a concrete mix. 36 concrete cubesmeasuring 100mm x 100mm x 100mm and 12 concrete cubes measuring 150mm x 150mm x150mm were prepared and added with different percentages of rubber from recycled tyres (0%,3%, 5% and 7%) as fine aggregate replacement. The results obtained show that the replacementof fine aggregate with 7% of rubber recorded a compressive strength of 43.7MPa while theaddition of 3% of rubber in the concrete sample recorded a high compressive strength of50.8MPa. This shows that there is a decrease in the strength and workability of concrete as theamount of rubber used a replacement for fine aggregate in concrete increases. On the otherhand, the water absorption test indicated that concrete which contains rubber has better waterabsorption ability. In this study, 3% of rubber was found to be the optimal percentage as apartial replacement for fine aggregate in the production of concrete.

Topics

• impedance spectroscopy
• strength
• durability
• rubber