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What are the factors affecting the use of steel fiber

Jan 21, 2017

According to steel fiber enhanced mechanism of various theory, such as steel fiber spacing theory, and composite theory and micro fracture theory, and large of test data of analysis, can determine fiber of enhanced effect main depends on matrix strength (FM), fiber of long diameter than (steel fiber length l and diameter d of ratio, that I/d), fiber of volume rate (steel fiber concrete in the steel fiber by accounted for volume percentage), fiber and matrix between of bond strength (τ), and fiber in matrix in the of distribution and orientation (η) of effect. When steel fiber concrete that most fibers are pulled out and not pulled off, thus improving fiber and the matrix is to improve the bond strength between fiber-reinforced the main control factor.