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Abstract
Most of the supplementary cementitious materials are derived from waste from different industries with varying properties. It is necessary to know the performance of these materials in cement composites. In this investigation, the effect of water-to-binder ratio and grade of concrete on the properties of the concrete containing stone dust and microfine slag in binary and ternary blend with cement are studied. A concrete mix of M20 grade was prepared for control concrete, and the different replacement binder compositions were introduced without any changes to the total cementitious content. In another grade of M35 concrete, the cementitious (binder) content was increased by 12.5% over that of the control concrete. Strength and workability of concretes were determined along with chloride ingress. The study has revealed that stone dust and microfine slag are more effective in a ternary blend than the respective binary blends. It is also found that chloride ingress into concretes with supplementary cementitious materials is more significantly reduced in higher grades of concrete with lower water-to-binder ratio.
Published Version
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