Compressive strength test on Porous concrete manufactured using Pumice Stone.

Abstract

In this study, Pumice stone is used as a replacement for coarse aggregate. The replacement is done with a percentage of 15, 20, 25 and 30. Before replacement various tests are conducted on various constituents of concrete such as cement, coarse aggregate, fine aggregates and also on pumice stone. The results obtained are satisfactory. After finding the initial test results on materials, we designed the mix for a grade of 35. The various constituents with and without replacement of coarse aggregates are discussed. After mix are prepared they are tested for compressive strength test for 3 days, 7days and 21 days. The optimum results by replacing coarse aggregate with pumice stone are obtained at a mix of 20% replacement. The results obtained are 13.02, 22.79 and 31.91 N/mm² for 3, 7 and 21 days respectively.