Strength and Fire Behaviour of Concrete Reinforced with PET Fibres

Abstract

In the construction industry, the term ‘concrete’ plays a very significant role. But concrete faces drawbacks such as brittleness, low fatigue, low ductility, low durability. To fix these problems, the concept of using non-biodegradable plastic bottle fibres can stay in the existence for hundreds of years. The best way to handle this waste is to introduce it in a concrete mix to minimize the environmental issues and also to study the plastic characteristics. Not only does non-biodegradable waste cause damage to the environment but it also has serious consequences for human and other things. In the present study, PET fibres were incorporated in the M30 grade of concrete with fibre volume fraction 0.5, 1 and 1.5% and strength was compared with concrete without plastic fibres. Appropriate tests were performed to measure mechanical properties such as compressive strength, flexure strength, split cylinder test and Fire test. Various specimens like cube, beams and cylinders were cast, cured and tested for 7 days strength and 28 days strength. Compression test, flexure test, split cylinder test and Fire test were carried out and then compared to the conventional concrete.