Volume : 5, Issue : 1, January - 2016

Strength exhibition of M25 Grade Concrete with Limestone quarry dust Utilization for fine aggregates

Prof Tanveer Asif Zerdi

Abstract :

<p>As there is shortfalls in river sand fine aggregates for concrete constructions is noticed globally, author feels there be some substitution with locally available material as fine aggregates, By motivated with the issue this research work is carried out on M25 grade of concrete. Lime stone quarry dust is used as fine aggregate substitution. The compressive strength of concrete cubes at age of 7 , 21 and 28 days is obtained at room temperature. Split tensile strength and flexural strength of concrete are found at the age of 28 days. It is found that maximum compressive strength, tensile strength is obtained at 50% replacement of Lime stone quarry dust. This shows that the locally available lime stone quarry dust can be utilized in concrete mixtures as a good substitute for natural river sand, at 50% replacement with additional strength than control concrete.</p>