Author : Suchita Hirde and Pravin Gorse

In this investigation ground granulated blast furnace slag (GGBS) is used as an alternative binder and filler materials for Ordinary Portland cement (OPC). This paper deals with the results of an experimental investigation on structural properties of fiber reinforced concrete with GGBS. M50 grade of concrete was considered for the study. Cement was replaced by GGBS with 0%, 10%, 20%, 30% & 40% by weight of cement. Percentage of steel fiber was kept constant as 1.5%. The variables were size of aggregate (10mm 12 mm & 20mm) and variable percentage of GGBS to study the effects of size of aggregate and percentage of GGBS on workability, dry density, compressive strength and flexural strength. Cubes of 150mmx150mmx150mm size for compressive strength, beams of 100 x 100 x 500 mm for flexural strength were cast. Specimens with replica of GGBS were wet cured upto 56 days while normal concrete was cured upto 28 days. All specimens were tested subsequently to study the strength performance of this concrete. Workability of GGBS fiber reinforced concrete was found to be increased with increase in GGBS percentage. Results of compressive strength, cost effectiveness and toughness indices under flexural loading condition for ground granulated blast furnace slag fiber reinforced concrete are presented.

Keywords: Ground granulated blast furnace slag, steel fiber, compressive strength, flexural strength, workability, strength of concrete, optimum GGBS content, toughness indices

Article published in International Journal of Current Engineering and Technology, Vol.5, No.3 (June-2015)