STUDY ON STRENGTH PROPERTIES OF CONCRETE BY PARTIALLY REPLACING CEMENT WITH GGBS

Concrete is the most widely used material in the construction industry. Possessing high strength and stability, concrete is also an economical building material. The cement required in the concrete leaves enormous carbon foot print which shows an alarming impact on the global environmental conditions. Hence, there is a requirement of some material which can be effective in supporting cement when added along with it shows similar characteristics. Ground granulated blast furnace slag (GGBS) is found to be one such material which has similar characteristics when mixed with cement. GGBS is a waste material which is required to be disposed. Instead it can be used as a supporting material to cement in certain proportions to reduce the amount of cement in constructions in order to cut down the adverse effects on the environment. The principle objective is to study the strength properties of concrete by partially replacing cement with GGBS. Concrete cubes were prepared by replacing the cement with GGBS in four different proportions (5%, 10%, 15% and 20%). The cubes casted with the above proportions have been tested for the compressive strength and the values obtained were compared with those of control specimens at the end of 7, 14 and 28 day curing periods.