ISSN (0970-2083)
STUDY ON STRENGTH PROPERTIES OF CONCRETE USING GGBS AND STEEL FIBER AS PARTIAL REPLACEMENT OF CEMENT
In this modern scenario, expectations from concrete have increased exponentially. Various physical parameters of concrete like strength, durability, serviceability and expected service life needs improvement. This paper deals with the study of the strength parameters of concrete by partial replacement of cement by ground granulated blast furnace slag (GGBS). The tests were conducted as per Bureau of Indian standards (BIS) to evaluate the suitability of GGBS as a partial replacement of cement. The steel fiber was used to increase the toughness of the concrete. Various strength parameters such as compressive strength, split tensile strength of concrete for a grade of M25 was tested and recorded. The partially replaced concrete showed an increase in strength as compared to conventional concrete. Various mix combinations with a partial replacement of 10%, 20%, 30% and 40% by the weight of cement by GGBS was taken and 0.5%, 1% and 1.5% steel fiber of hooked end type of aspect ratio 50-60 were used. The test results show that the partial replacement of cement by both GGBS and steel fiber has an increase in the strength of concrete. Considering all the strength parameters into account it was found that a 30% replacement of GGBS with 1% steel fiber is optimum for M25 mix.
DHANYA R, ARASAN G.V, GANAPATHY RAMASAMY
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