INVESTIGATION ON BEHAVIOR OF BASALT FIBRE REINFORCED CONCRETE MADE WITH GGBFS, CONCRETE DEBRIS AND OPTIMIZATION OF INGREDIENTS

Rapid urbanization and globalization enhance the growth of a country. Over the past few decades, investments on the development of infrastructure facilities of the nation gets huge importance and the same which results in increasing demand on raw materials utilized for the construction such as cement and aggregates. On the other hand, there are numerous problems were arising when the disposal of slags and concrete debris takes place directly to the environment. In order to solve both the problems, it is proposed to utilise the disposed waste materials in the environment as a substitute material for concrete ingredients. In this study, cement and coarse aggregate were replaced partially by ground granulated blast furnace slag (GGBFS) (0% to 50% at an interval of 10%) and demolished concrete debris (CD) (0% to 100% at an interval of 20%) in M30 grade Basalt Fibre Reinforced Concrete (BFRC) with a basalt fibre (BF) content of 0%, 0.3%, 0.6% and 0.9% by volume of concrete. Optimum replacement percentages of GGBFS, CB and BF contents were optimized by experimental investigation done on strength properties of BFRC and Response Surface Methodology (RSM).