Abstract: River sand has been the most popular choice for the fine aggregate component of concrete in the past, but overuse of the material has led to environmental concerns. In the current study effect of variation of fineness modulus of quarry dust for varying percentage replacement of river sand by it on the compressive strength of concrete are studied. Tests were carried on mortar cubes to study mortar compressive strength and on concrete specimens. Two basic mixes M20 and M25 were considered in the study. Tests indicate the relation between variations of compressive strength with the fineness of quarry dust.
Keywords: Quarry dust, sieve analysis, cement, concrete