STATE OF ART – REVIEW OF SLURRY INFILTRATED CONCRETE (SIFCON)

Abstract

Slurry Infiltrated Fiber Concrete (SIFCON) is a high-performance concrete used in structures exercising impact load during service. It is a special type of high performance fiber reinforced concrete (HPFRC). This consists of high strength fibers infiltrated with cement based matrix which differs from steel fiber reinforced concrete (SFRC).The addition of higher percentage of fibres ranges from 4-20%
against the limit of 3% fibers in SFRC because of the balling effect of fibers. Matrix may be cement slurry or flowing mortar with sand passing through 1.18mm sieve. Fibers serves as an excellent crack arrestor, helps in reduction of stiffness degradation and increases cumulative ductility and energy absorption capacity. Sifcon is capable of sustaining higher loads with very less deflection and the regions with SIFCON are found to be intact after ultimate failure. It also helps in the reduction of shear reinforcement in the congested areas by its sufficient shear and bond strength. SIFCON has potential for applications such as beam column joints, repair and rehabilitation, retrofitting and explosive resisting structures. This paper presents reviews on SIFCON, its advantages and applications and concludes that SIFCON is superior to conventional concrete in terms of flexural, shear, axial tension and compressive strength. It details the experimental investigations and analytical computations in SIFCON.