Engineering Properties of Concrete Incorporating Scrap Rubber Tire as Aggregate Replacement with Palm Oil Fuel Ash as Partial Replacement of Ordinary Portland cement.

Abstract

One of the most popular fields of concrete research is a modification of concrete properties by substituting waste materials. In this research, the feasibility and performance of using tirerubber particles incorporating 5%,10% and 20% as replacement of mineral aggregate and 20% Palm oil fuel ash (POFA) as cement replacement is investigated. Two different types of tire-rubber were applied in this study; the first type was fiber rubber with 0.84 to 3.36 mm particle size, and the second was granule rubber of 1-4 mm particle size. The research was considered to develop information about the effect size and shape of tire-rubber particles on mechanical properties of rubberized concrete. Selected standard mechanical test were performed and the result was analysed based on ASTM standard. The mechanical properties include compressive strength, indirect tensile strength and flexural strength. The result showed that the mechanical properties of rubberized concrete have considerably changed by the increase in replacement ratios further than 5% in both types.