Utility of Crushed Stone Sand for Making Masonry Mortar

Abstract

This paper deals with assessing suitability of crushed stone sand in replacement of natural sand for making of
masonry mortar. For an internal study at Maharashtra Engineering Research Institute Nashik, five types of
masonry mortar specimens (1:2, 1:3, 1:4, 1:5 & 1:6) were cast in the laboratory using natural sand & OPC 43
conforming to IS 8112 – 1989. Likewise, exactly five similar types of masonry mortar specimens were cast
using crushed stone sand & OPC 43.Applying the same concept, similar five types of masonry mortar
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 masonry mortar specimens were cast using crushed stone
sand & PPC.Compressive strengths at various ages were observed for each masonry mortar specimen.
Comparative study reveals that crushed stone sand can be used in replacement of natural sand for making of
masonry mortar if it satisfies the specifications laid down in IS 2116 – 1980 [7] and also it is available at lower
price as compared to natural sand.