TY - EJOU AU - Kim, Y. Y. AU - Lee, B. Y. AU - Kim, J. K. TI - Evaluation of fiber dispersion of PVA-ECC T2 - The International Conference on Computational \& Experimental Engineering and Sciences PY - 2008 VL - 7 IS - 4 SN - 1933-2815 AB - The fiber dispersion performance in fiber-reinforced cementitious composites is a crucial factor with respect to achieving desired mechanical performance. However, evaluation of the fiber dispersion performance in the composite PVA-ECC (Polyvinyl alcohol-Engineered Cementitious Composite) is extremely challenging because of the low contrast of PVA fibers with the cement-based matrix. In the present work, an enhanced image processing technique including more detailed classification of types of fibers and adaptation of a morphological reconstruction, the fiber detection performance is enhanced. Test results using artificial and real fiber images showed that a distribution coefficient αf, referred to as the fiber dispersion coefficient was calculated reasonably and the fiber detection performance was enhanced. KW - DO - 10.3970/icces.2008.007.167