In uence of waste tyre fibers on strength, abrasion resistance and carbonation of concrete

Waste tire is increasingly becoming an environmental, health, and aesthetic problem. Used tires are of category of waste whose recycling is extensively dicult because of highly complex structure, the diverse composition of the raw material. Concrete is a versatile construction material due to easy fabrication, locally available material, and high mechanical strength. The use of waste tires as a concrete additive is a possible disposal solution. Rubberized concrete may thus contribute in sustainable construction by use of industrial waste, minimizing the natural resources and producing a more ecient material. In this paper experimental investigation is carried out to evaluate the exural strength, compressive strength, abrasion resistance and carbonation of concrete containing waste rubber tire bers as partial replacement of ne aggregates. Fibers from mechanical grinding of used rubber tire have been incorporated with three water-binder ratio and six levels of rubber bers contents (0-25%). It has also been shown that with increasing replacement level of rubber bers, exural strength and abrasion resistance is increased. Further, it has been also observed that compressive strength (up to 90 days) and carbonation depth change with the increasing of the replacement level of waste rubber content.