Study on use of Granite Wastage as a partial replacement of Coarse Aggregate in Concrete

Abstract

In our sub-continent, wastages of Granite production has generated a very huge amount of by-products in the form of coarse aggregate which causes large scale of environmental pollution. This has led to a major concern in the environmental as well as construction industry due to the disposal of these million tons of coarse aggregate. The purpose of this study is to experimentally investigate the compatibility of wastage granite by-product for replacing of coarse aggregates in concrete partially. In this work, we have used waste granite in spite of stone in different percentages like 0%,5%,10%,20%,and 25% by weight and cement is used the same. Influence on replacement of wastage granite with stone on the strength behavior on concrete was studied at curing age of 28 days and the results are found with conventional concrete cylinder. 20% replacement of coarse aggregates with waste granite resulted in the best result in compressive strength at 28 days of curing. The results of the experimental study show that, mixture of wastage granite can partially be used in place of coarse aggregate in concrete and it saves considerable amount of stone there by preserving the valuable natural resource. Wastage granite concrete offers a cost reduction of approximately 2% compared to normal concrete while providing additional strength benefits and contributing to sustainability. Keywords:Waste Granite, Stone ; Partial replacement; Compressive strength.