Flexural Behavior of Ultra-High Performance Steel Fiber Reinforced Concrete: A State of the Art Review

Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) is a cement based composite material with distinctive properties such as compressive and flexure strengths in the excess of 150MPa and 30MPa. This ultra-high flexure behavior is due to the incorporation of steel fibers in the matrix. The factors influencing the flexure behavior of UHPFRC are: 1.Materials used 2.Mix proportions 3.Steel fiber-content, shape and aspect ratio adopted. In context to that, this paper presents the state of the art review by focusing on the effect of above factors on flexural behavior of UHPFRC. It was observed that a portion of silica fume can be replaced by the substitute materials like fly ash, GGBS,
and rice husk ash. Curing of the UHPFRC members at high temperatures is preferable to attain expected strengths. And
2% steel fibers by volume in the matrix will provide desired flexural properties.