Characteristics between Steel Fiber Reinforced Concrete (SFRC) and Slurry Infiltrated Fiber Reinforced Concrete (SIFCON)

Abstract

Ordinary cement concrete possesses a very low tensile strength, limited ductility and little resistance to cracking. 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 is now established that one of the important properties of Steel Fiber Reinforced Concrete (SFRC) and Slurry Infiltrated Fiber Reinforced Concrete (SIFCON) were its superior resistance to cracking and crack propagation. In this paper, the effect of fibers on the strength of concrete for SFRC and SIFCON have been studied by varying the percentage of fibers in concrete. Fiber content was varied by 0 %, 1%, 2%, and 3% by volume of cement. Cubes of size 150mm×150mm×150mm to check the compressive strength and beams of size 500mm×100mm×100mm for checking flexural strength was casted. All the specimens were cured for 28 days before tested. The results of SFRC and SIFCON for 28 days curing with varied percentage of fiber were studied and it has been found that there is significant strength improvement for both SFRC and SIFCON. The optimum fiber content while studying the compressive strength and flexural strength is found to be 3%. Also, it has been observed that with the increase in fiber content up to the optimum value increases the strength of concrete