Published Paper Details:

Utilization of alternate cementation materials leads to several possible improvements in the concrete composites also as well as in the overall economy of construction projects. This requirement is drawn the attention of investigators to explore new replacements of ingredients of concrete. Cement with GGBS replacement has emerged as a major alternative to conventional concrete and has rapidly drawn the concrete industry attention due to its cement savings, energy savings, cost savings, environmental and socio-economic benefits. The present paper is an effort to quantify the strength of ground granulated blast furnace slag (GGBS) at various replacement levels and evaluate its efficiencies with respect to concrete. This research evaluates the strength and strength efficiency factors of hardened concrete, by partially replacing cement by various percentages of ground granulated blast furnace slag for M25 grade of concrete at various ages. From the study, it can be concluded that, since the grain size of GGBS is less than that of ordinary Portland cement, its strength at early ages is low & will continue to gain strength up to 20% more than cement over a period of 28 days curing and also the workability of concrete is effective up to an addition of 40 % replacement of GGBS with concrete. The optimum GGBS replacement as cementation material is characterized by high compressive strength, low heat of hydration, resistance to chemical attack, better workability, good durability and cost-effectiveness.