MITIGATION FOR FIRE-INDUCED SPALLING IN CONCRETE BY REUSED TYRE POLYMER FIBRES
Keywords:
Portland cement concrete, waste crumb tireAbstract
Traditional concrete is primarily made up of four fundamental ingredients, i.e. coarse aggregate, fine aggregate (i.e. sand), cement and water. Nowadays, large quantities of scrap tires are generated each year globally. With the increased incidents of major fires in buildings; assessment, repairs and rehabilitation of fire damaged structures has become a topical interest. In the last 20 years, a lot of work by using these waste materials has been done in various civil engineering projects. By using waste tire rubber as a coarse aggregate as well as fine aggregate in concrete the natural resources can be saved and environmental pollution can be minimize. Partially replacing the coarse or fine aggregate of concrete with some quantity of small waste tire cubes can improve qualities such as low unit weight, high resistance to abrasion, absorbing the shocks and vibrations, high ductility and brittleness and so on to the concrete. It has been observed that the use of waste tire as aggregate replacement improves the toughness and sound insulation properties of concrete.
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