ABSTRACT
General purpose cement type with specific gravity of 3.15 was used as the binder material in the concrete mixes. Densified SF with specific gravity of 2.2 was used as a partial replacement of concrete cement by weight. Dolomite stone having nominal maximum sizes of 10 mm and 20 mm was used as coarse aggregates. River sand with a maximum aggregate size of 5 mm was used as fine aggregate. The crumb rubber used during the course of this study had two particle sizes of 1.18 and 2.36 mm and was used as a partial replacement of sand by volume. The specific gravity, unit weight, and fineness modulus were 2.72, 1570 kg/m3, and 6.02 respectively for dolomite; 2.65, 1630 kg/m3, and 2.36 respectively for sand; and 0.85, 530 kg/m3, and 4.53 respectively for rubber. Polycarboxylic ether type Superplasticizer (SP) with a specific gravity of 1.08 was added to the concrete mixtures to achieve the required concrete workability.
