Effect of Water to Cement Ratio on Self-Compacting Concrete Contain GGBS for Fresh State and Harden State Mechanical Properties

Abstract

This paper presents an experimental investigation on Self-compacting concrete (SCC) of M50 for different water to cement ratioon fresh state and harden state mechanical property. SCC is runny fluid mix which does not require any external vibration. It gains its fluidity from the fine aggregate, cementitious material and super plasticizer. The cost of SCC is high due to high amount of cement and chemical admixture use in it. To overcome this issue ground granulated blast furnace slag (GGBS) can be used as an alternative to cement, whichacquires the same cementitious properties as that of cement. The utilization of GGBS in SCC isindirectly aiding waste reduction and maintaining ecological balance in the environment. When SCC is in fresh state itsproperties are measured in terms of workability such as flow value, V-funnel, J-ring, L-box and plastic density are measured. The Harden state properties namely compressive and split tension test are is measuredat 3, 7, 14 and 28 days of moist curing for water to cementratio 0.25, 0.3, 0.35. Substitution level of GGBS in the concrete is kept at 50%. It is found that maximum compressive and split tensile strength obtained for water cement ratio of 0.35 and similarly fresh properties.