Effects of Fiber Shapes and Contents on Steel Fiber Reinforcement in High-Strength Concrete
By Kogo Ushida, Shahid Nasir, Takumi Uehara and Hidetaka Umehara

Concrete Research and Technology
Vol.15, No.2, Mar 2004 (Issue 35)


Synopsis:
This study focused on the properties of high-strength concrete reinforced by steel fiber with different shapes and contents. First, bond tests of steel fibers in high-strength mortar were conducted. Bond behaviors of six types of steel fibers with different shapes were investigated. Then, flesh and hardening properties of steel fiber reinforced high-strength concrete were examined. The effects of shapes and contents of steel fibers to slump, air content, compressive strength, flexural strength and toughness were investigated.
Keywords:
fiber shape, fiber content, high-strength concrete, bond properties, flexural properties

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