Experimental Studies on Fresh Properties of Self-Compacting Geopolymer Concrete using Waste Foundry Sand

To resolve the problem of carbon emission and to reduce the Labour cost in construction of concrete structures an innovative sustainable concreting technique named “self-compacting geopolymer concrete� is developed. The benefit of using this concreting technique is that the Labour cost reduces due to its self compactability and it also solves the problem of disposal of waste foundry sand. The present investigation is mainly focused on the fresh properties of self-compacting geopolymer concrete with varying molarity of NaOH and using waste foundry sand as replacement of ordinary sand to make this a low-cost concreting technique. Test were performed such as slump flow, T50cm, V-funnel and L-box were conducted to assess the fresh properties. Studies reveals that increasing the molarity of NaOH decreases the fresh properties but increased the compressive strength of SCGC.