Compressive and split tensile strength of Basalt Fibre Concrete as Partial Replacement of Fine Aggregate with Copper Slag

Abstract

Plain concrete (PC) is a brittle material with low tensile strength and susceptible to cracking under tensile
stress. Randomly distributed basalt fibres are able to link these cracks and obstruct their development. By this
mechanism, the addition of chopped basalt fibres can enhance the mechanical behavior of plain concrete. Basalt fiber
reinforced concrete (BFRC), a new high performance cement-based composite material. Basalt fibre concrete
decreases the workability of concrete. Copper slag is an industrial by-product obtained during the smelting of copper
which is used in concrete. Copper slag increases the workability of concrete. This experimental work carried out on
concrete specimen containing chopped basalt fibre as additive materials and copper slag as partial replacement with
fine aggregate. Adding different dosage of basalt fibre (1%, 2% and 3%) by weight of cement in concrete and partially
replacement of copper slag (10%, 20%, and 30%) with fine aggregate by volume. Prepare standard cube and cylinder
to measure compressive strength after 7days, 14days, and 28 days and split tensile strength after 28days of curing and
compare this strength with M25 conventional concrete.