A Study on Durability of Steel Fiber Reinforced Concrete

In this modern age, civil engineering constructions have their own structural and durability requirements, every structure has its own intended purpose and hence to meet this purpose, modification in traditional cement concrete has become mandatory. It has been found that steel fibers added in specific percentage to concrete improves the mechanical properties, durability and serviceability of the structure. It is now established that one of the important properties of steel fiber reinforced concrete (SFRC) is its superior to cracking and crack propagation. In this paper effect of steel fibers on the durability of concrete for M40 grade have been studied by varying percentage of steel fibers in concrete. Steel Fiber content was varied by 0.75%, 1.0%, and 1.25% by volume of concrete. Water to cement ration was maintained 0.40 throughout the project work. Concrete cubes of size 150mmX150mmX150mm were tested for compressive strength, Resistance to Acid Attack, Water Absorption, Porosity, and Sorptivity after 28 days curing. Cylinders of size 150mm dia. and 300mm height were tested for Split Tensile strength after 28days curing. 1.25% steel fiber added by volume of concrete exhibited enhanced durability properties with reference to resistance to Acid attack, Porosity, Water absorption and Sorptivity.