Experimental Behavior of Reinforced Concrete with Partial Replacement of Cement with Ground Granulated Blast furnace Slag

GGBS a byproduct in pig iron manufacture has been found to be an ideal material to replace ordinary Portland cement used in concrete and it improves the durability of concrete. GGBS slag is obtained by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. In this project it is proposed to study the Experimental Behavior of Reinforced Concrete with Partial Replacement of Cement with GGBS. Mix design has been arrived for M25 concrete with replaced by the different ratios of 50%, 60%, 70% & 80% of GGBS slag. Fineness modulus, specific gravity, sieve analysis and bulk density of fine aggregate and coarse aggregate are also found out.Five set experiments were conducted the compressive strength on cube with and without GGBS. Five set experiments were conducted the compressive strength on cube with and without GGBS. Totally forty five cube specimens were casted. Out of the first set, nine cubes casted with conventional concrete 0% replacement. The second set of nine cubes casted with 50% replacement of GGBS, the third set of nine cubes casted with 60% replacement of GGBS,The fourth set of nine cubes casted with 70% replacement of GGBS, The fifth set of nine cubes casted with 80% replacement of GGBS. Each set three cubes were tested with 7days, 14 days and 28 days respectively. Thus 50% GGBS as replacement for cement can be used in Cubes as it showed maximum compressive strength at 28% days. Three experiments were conducted on beam-column with and without GGBS. Out of the three specimens. two control specimens were cast without GGBS and the other specimens were cast with 50% GGBS. The specimens were tested under a constant axial load and reverse lateral loading. Lateral load carrying capacity of the specimens with and without GGBS are studied.Trail mix has been carried out to qualify the mix, afterwards cubes were cast and compressive strength test to be conducted on the concrete with different ratios to satisfy the property of selected density.