A REVIEW ON THE STUDY OF COMPRESSIVE STRENGTH OF CONCRETE DUE TO PARTIAL REPLACEMENT OF ORDINARY PORTLAND CEMENT WITH GROUND GRANULATED BLAST FURNACE SLAG AND FLY ASH

Abstract

Due to the increasing demand of the raw material in construction technology and harmful effect causing the environmental pollution, scientist, environmental enthusiasts, and researchers are searching for efficient, durable and economic raw building materials. This led to many developments which are specified by various Indian standards. In this study we have compared the test result obtained after compressive strength test over the samples cured for 28 days. The waste material utilized are Ground Granulated Blast Furnace Slag and fly ash. They are tested and the replacement of value 10 % or more can be obtained as the optimum percentage of replacement. The cement utilized is ordinary Portland cement. The result is compared with the specified draft of Indian standard fifth revision of IS 8112. The waste material utilized for the partial replacement of cement acts as the performance improvers. The parameter performance improvers in this study is the increasing compressive strength. The IS code specifies maximum percentage of replacement of fly ash and Granulated Slag is 5% each which confirms the requirement given by IS 3812(part 1) and IS 12089 for fly ash and granulated slag respectively. For the purpose of IS 8112 the definitions given in IS 4845 are applied. We found that equal to or more than 5 % of granulated slag and of fly ash can be the optimum replacement which confirms the IS 8112 specifications.