ANALYSIS OF COMPRESSIVE STREGTH OF CONCRETE USING STEEL SCRAP

Abstract

This paper assesses the effective use of steel scrap in concrete. In this study, total 39 nos. concrete cubes of
size 150 mm x 150 mm x 150 mm casted using steel scrap concrete grade M-20. Steel scrap used up to 2.4% by weight, at
a gap of 0.2% (i.e. 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%). As per Indian standard,
after 28 days compressive strength test done on casted concrete cubes and test results are compared with plain cement
concrete. After completing study, we know that the 28 days compressive strength of steel scrap concrete is more than
plain cement concrete. The main objective of this study to find out optimum percentage of steel scrap in concrete up to
which its compressive strength initially increased and then gradually decreased. At the end of the study, we found that up
to 1.4% of steel scrap, compressive strength increased then after more percentage of steel scrap causes slight reduction
in compressive strength.