Structural Investigation of Steel Fiber Reinforced Concrete Subjected to Impact Loading

Normally concrete structures are designed for static loads. Sometime such structures are coming across the dynamic loads arising from military activities, terrorist activities. Therefore, this investigation will undertake to provide the needed information about the influence of various parameters on performance characteristics of steel fiber reinforced concrete and increased need to strengthen concrete structures. This study aims to investigate the impact resistance of fiber reinforced concrete (FRC), incorporated with steel fibers at various dosages. For this, a drop weight test was performed on the 28 days cured plain and fiber reinforced concrete specimens. End hook, Crimped and flat steel fiber of length 35 mm and an aspect ratio equal to 80, 50, 77.77, 46.66 were added to concrete in proportion 1.5 % with water cement ratio of 0.40. The experimental test results of steel reinforced fiber concrete are compared with plain concrete and conclusions are arrived.