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Concrete is an intrinsically brittle material prone to damage through the impact of heavy objects and loads. There are several situations in which concrete structural elements are subjected to impact loading particularly industrial floors, Runways, exposed edges and rises. In this investigation, an attempt is made to study the impact resistance of Ternary blended concrete (TBC) subjected to drop weight test in accordance with the procedure suggested by ACI committee 544.2R-89. Ternary concretes were obtained by adding MS (5%, 10% and 15%) and GGBS (20% 30% 40% and 50%) to the Ordinary Portland cement. And also the study was extended to assess the impact resistance of Steel Fiber Reinforced Ternary Blended Concrete (SFRTBC).The concrete composites comprises of crimped steel fibers of aspect ratio (l/d) as 60 in various proportions viz., 0%,0.5%,1.0%,1.5%,2.0% by volume of concrete, with water to cement ratio 0.55. Impact strength characteristic of ternary concrete (TC) and fibrous ternary concrete for all the combinations were determined at 7, 28, and 90 day curing. The addition of steel fibers to concrete has improved the impact resistance considerably. The test results showed the variation of impact energy strength with different volume fraction of fibers. Investigation program included the determination of the optimum fiber content which can be provided in the concrete composites for different mix ratios.

Experimental studies on Impact resistance of Ternary concrete and Steel Fiber Reinforced Ternary concrete using MS and GGBS