IMPACT OF GGBS AS PARTIAL SUBSTITUTION TO CEMENT AND REPLACEMENT OF QUARRY DUST TO FINE AGGREGATE ON M50 GRADE OF CONCRETE
Keywords:
GGBS, Quarry Dust, Steel Fibre, Mechanical Properties, Durability test (Acid Attack).Abstract
the present evaluation focuses on optimal utilization of GGBS on M50 grade of concrete with various proportions mixes (0%, 10%, 20%, 30%, 40%) and replacement of quarry dust as fine aggregate which was maintained at 30% constant, along with addition of 1% of steel fibre by volume of concrete. For this various cubes, prisms, cylinders were casted and tested for different ages (3, 7, 28 days). To assess the mechanical properties of concrete some test were performed. Mix-3 emerges as the optimal replacement with enhanced value of compressive, split and flexural strength. Addition of steel fibre demonstrates the enhancement of flexural and split properties. Further, Acid attack test was conducted to assess the durability characteristic for optimal mix.
