Concrete is not just a mixture of cement and aggregate but it is synonymous to the strength and durability. Concrete is widely used material in construction due to its uniqueness property. But due to environment concern it is necessary to reduce the factor responsible for climate change. One material used in concrete has major effect on environment, so by reducing the quantity of that material we can approach towards sustainable development. We can do this without compromising the strength. The thrust nowadays is to produce thinner and green sections of better quality, which can carry the heavy loads. The high strength steel fiber reinforced concrete is a concrete having compressive strength greater than 40MPa, made of hydraulic cements and containing fine and coarse aggregates; and discontinuous, unconnected, randomly distributed steel fibers.The present study aims at, developing concrete mixtures incorporating marble dust as partial replacement of cement as well as steel fibers. In this study, the flexural, compressive and split tensile strength concrete mixtures for different percentage of steel fibers and replacement of cement with marble dust are reported. It is found out the maximum increase in flexure strength, compressive strength and split tensile strength is for 0% Marble Dust and 1% Steel fibers. Also it has been possible to achieve savings in cement by replacing it with marble dust and adding fibers.This study also shows that in view of the high flexural strength, high values of compressive strength and high values of split tensile strength, higher load carrying capacity and higher life expectancy, the combination of 10 to 20% marble dust replacement along with addition of 0.5 to 1% steel fibers is ideal for concrete.
High Performance Concrete, Marble Dust, Steel fibers, Super Plasticizer.
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