Utilization of sustainable materials for development of High Strength Concrete

Concrete is the mostly used material in all the construction activities and thus resulted in scarcity of raw materials for future infrastructure development. The entire problematic condition is balanced by utilization of different alternatives such as by products from various industries resulting towards sustainable development. Hence in order to develop an innovative concrete with improved properties, granite dust and alccofine are used in this present study. Conplast SP550 is used as super plasticizer for workability. M40 grade concrete is considered as reference concrete mix. In the first phase, cement is replaced with granite dust by 10, 20, 30, 40 and 50% and followed by second phase where alccofine is also utilized as an alternative for cement by 5, 10, 15, and 20 % respectively. In the final phase, an innovative concrete with improved compressive strength at 7, 14, 28 and 56 days curing periods is obtained by replacing cement with optimum contents of granite dust and alccofine at 20 % and 15 % respectively. Non-destructive testing such as rebound hammer test is also performed on the concrete mixes. The use of materials such as alccofine and granite dust has shown enhancement of strength resulting in development of new sustainable concrete.