Study on Properties of Concrete with Addition of SBR and Steel Fiber

Steel fibers are now days commonly used in concrete as due to addition of these fibers considerable strength is achieved. Fiber reinforced concrete possesses desirable properties like high compressive strength, stiffness and durability under usual environmental condition. In the present work, experimental test are carried out on SBR and steel fiber reinforced concrete to calculate flexural strength on beam, spilt tensile strength on cylinder. Casting of the specimen is done in laboratory using different % of polymer(styrene butadiene rubber) with varying the hooked end steel fiber. It is observed that by changing the % steel fibers and SBR concrete a strong cement hydrate- aggregate bond is developed. Also micro cracks are bridged by the polymer film on membranes which prevent cracks propagation. As observed flexural and bond strength of concrete is increased with the addition of steel fiber and SBR.