Compressive strength and rebound number of Quarry Dust Fine Powder (QDFP) concrete

摘要

Cement production poses problems such as availability of raw material, high energy consumption, cost and environmental impact, thus an alternative in finding the replacement of cement need to be looked into. This research paper reported on the potential use of Quarry Dust Fine Powder (QDFP) as a Supplementary Cementitious Material (SCM). Experimental research was performed to determine the performance of Superplasticized QDFP concrete in term of its Compressive Strength and Rebound Number. Four series of QDFP concrete with Superplasticizer (Sp) at different percentages level of replacement of QDFP i.e. 3%, 5%, 10% and 15% and at various water-binder ratio (w/b) of 0.3, 0.4, 0.5 and 0.6 were studied. From the result obtained, it was found that the optimum of QDFP in achieving compressive strength and rebound number at w/b 0.3, 0.4, 0.5 and 0.6 can be up to 10%.