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Research Article
Effect of metakaolin and steel slag on performance of binary blended concrete
Moulshree Dubey, Shirish V Deo, Gangadhar Ramtekkar
Department of Civil Engineering, National Institute of Technology, Raipur-492010
Keywords
Abstract
Metakaolin;
Steel Slag;
Strength;
Durability;
Regression Analysis
In this study the effect of steel slag and metakaolin as replacement material to cement on strength and durability of binary blended concrete has been investigated. In concrete cement is the very significant material and serves as a binder. The combined effect metakaolin and steel slag as replacement to cement on concrete performance has been studied. The cement has been replaced with metakaolin and steel slag by 30% by weight of cement. For obtaining optimum dosage of metakaolin and steel slag different proportions are added as substitutionary material of cement. The compressive strength, flexural strength, electrical resistivity, and water absorptions tests are conducted to study the effect of replacement on strength and durability of concrete. There is a maximum of 25% enhancement in compressive strength of concrete has been observed in binary concrete containing 15% of steel slag and 15% of metakaolin in comparison with control concrete. Results confirm that the addition of steel slag and metakaolin in binary blended concrete enhances the concrete performance. Also, regression analysis has been performed to predict the compressive strength of concrete. The developed model will predict the compressive strength results accurately with minimum error.
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