Experimental Study to Enhance the Strength Properties of Self Compacting Concrete Using Waste Marble Dust and Fly Ash

Supplementary materials (SMs) have been widely used all over the world in ready-mixed concrete due to their economic and environmental benefits; hence, they have drawn much attention in recent years. Due to growth in construction industry and demand of Concrete, there is a scarcity of the different resources, used in making concrete. So in my research work, I aim to understand and examine the appropriate material and percentage of waste materials to be used as a replacement of the same in concrete as supplementary materials. The process of the development of the concrete for strength aspects in various proportions varying from 0%, 10%, 15%, 20% and 25% marble dust as a replacement of cement along with fly ash. The main aim of the study was to indentify the best proportion of marble dust with fly ash, which can be replaced with cement to get the desired strength. As primarily, waste marble has been used as a replacement of cement and marble sand as a replacement of sand. M30 mix of self-compaction concrete was opted for experimental purpose. In this experimental investigation three different tests were conducted on fresh concrete and two tests on cured concrete cubes to understand its strength. Finally, different results of all the tests will guide me to identify the appropriate percentage use of waste marble dust and marble sand for achieving the best result. Judicious selection of materials, appropriate mixing methods, proper curing, and appropriate dosage of superplasticizer will enable the production of high performing high volume fly ash and marble self compacting concrete.