FraMCoS 7 2010 Jeju, South Korea

Study on size effect in bending behavior of ECC

In this paper, the bending test of Engineered Cementitious Composites (ECC) with PVA fiber is conducted to investigate the size effect for bending behavior of ECC. The main parameter is the size of the specimens. The test results show that…

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Year 2010
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Abstract

In this paper, the bending test of Engineered Cementitious Composites (ECC) with PVA fiber is conducted to investigate the size effect for bending behavior of ECC. The main parameter is the size of the specimens. The test results show that the bending strength increases as the size of specimen decreases. To ex- press the wall effect of fibers, probability of fibers which cross the surface of specimen is solved theoretically. In the case of 40×40mm section specimen, 23% of fibers are influenced by specimen surface and considered to be oriented toward two-dimension. The coefficient of contribution to bending strength by two-dimensional orientation of fibers is proposed based on the probability.