The use of rice husk ash as admixture in producing selfcompacting concrete

Admixtures are incorporated into concrete in today’s world in order to achieve variety of goals. This research study the use of rice husk ash as an admixture in producing selfcompacting concrete. The rice husk ash is varied in different percentages (5, 10, 15, 20, 25 and 30%) as partial replacement for ordinary Portland cement (OPC) to know if it improves the properties of fresh and hardened properties of the self-compacting concrete. The superplasticizer used was conplast SP 430 and the water cement ratio 0.35 was kept constant throughout all mix. Rice husk ash is a good super-pozzolan which is used to make special concrete mixes, in which the slump Flow, T50cm slump, V-funnel and the L-box test was used to test for the workability of the fresh concrete mix and the compressive strength of each mix was tested to know the specific strength of each self-compacting mix with varying percentage of rice husk ash at 7, 14 and 28 days of curing