Use of Crushed Stone Sand in Lieu of Natural Sand for Making of Concrete

Abstract

This paper deals with assessing suitability of crushed stone sand in replacement of natural sand for making of concrete. For an internal study at Maharashtra Engineering Research Institute Nashik, five types of concrete specimens were cast in the laboratory using natural sand & OPC 43 conforming to IS 8112 – 1989. Likewise, exactly five similar types of concrete specimens were cast using crushed stone sand & OPC 43. Applying the same concept, similar five types of concrete specimens with same mix proportions as used above were cast using natural sand &  PPC conforming to IS 1489 (Part 1) - 1991. Likewise, exactly five similar types of concrete specimens were cast using crushed stone sand & PPC. Thus, an equal opportunity was provided to natural sand and crushed stone sand for making of all ten sets of concrete specimens. Compressive strengths at various ages were observed for each concrete specimen.  Also, flexural strength at 28^th day was observed for every concrete specimen. Comparative study reveals that crushed stone sand can be used in replacement of natural sand for making of concrete if it satisfies the specifications laid down in IS 383 – 1970 (revised in 2019) and also it is available at lower price as compared to natural sand.