Strength of Concrete Containing Combination of Macro Straight Glass and Polypropylene Fibre

Abstract

Concrete is an essential material that is needed in the construction industry. However concrete has high compressive strength but low in tensile strength making them exposed to cracking and causing defects as well as failure of shrinkage. The aim of this study is to investigate the compressive strength and tensile strength of concrete containing macro straight glass (MSG) and polypropylene (PP) fibre. Different mix design ratio of fibre are used in this study. Compressive strength test and split tensile test were conducted with the design addition of fibre which is 0%, 0.5%, 1.0%, and 1.5% for both type of fibre. It was found that design mix of 1.0% PP fibre with 0.5% MSG had significant increase in compressive strength with 18.01% compared to normal concrete. 1.5% PP fibre with 1.0% MSG also produced highest tensile strength with 36.42% compared to normal concrete. The addition of the fibres improved the compressive strength and tensile strength of concrete.