Abstract
This paper presents the applications of replacement of natural fine aggregate using copper slag. The study is conducted by replacing the fine aggregate from 0 to 100% at the interval of 20% on M25 grade concrete and 1.8% superplasticizer by weight of cement. The compressive strength, split tensile strength and flexural test is studied and reported. It is observed that replacement of natural fine aggregate at 40% (CS40) gives higher compressive strength and split tensile strength however the flexural strength is maximal at 60% (CS60). It is observed that as compared with conventional concrete with natural fine aggregate the compressive strength of CS40 increases by 33.60%, split tensile strength of CS40 increases by 22.69% and flexural strength of CS60 by 4.93%. However it is observed that the density of concrete of CS40 increases by 9.69% which can be used as high density material for construction of concrete roads, machine foundations etc.
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