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http://dx.doi.org/10.4334/JKCI.2004.16.3.391

Evaluation of Crack Control and Permeability of Hydrophilic PVA fiber Reinforced Cement Composite  

Won Jing-Pil (Dept. of Civil and Environmental System Engineering, Kunkuk University)
Hwang Keum-Sik (Dongwon Construction. Co. Ltd, R&D Team)
Park Chan-Gi (Dept. of Civil and Environmental System Engineering, Kunkuk University)
Park Hae-Geun (Samsung Corporation, Engineering & Construction Group, Civil Engineering Technology Team)
Publication Information
Journal of the Korea Concrete Institute / v.16, no.3, 2004 , pp. 391-396 More about this Journal
Abstract
Plastic shrinkage crack occurs at the exposed surfaces of freshly placed concrete due to consolidation of the concrete mass and rapid evaporation of water from the surface. This so-called shrinkage crack is a major concern for concrete, especially for flat structures such as pavements, slabs for industrial factories and retaining walls. This study has been performed to obtain the plastic shrinkage and the permeability of hydrophilic poly vinyl alcohol(PVA) fiber reinforced mortar and concrete. Test results indicated that PVA fiber reinforced cement composite showed an ability to reduce the total crack area and the maximum crack width (as compared to plain and polypropylene fiber reinforced concrete). Also, according to the permeability test result, it was found that PVA fiber reinforced cement composite was more reducing than polypropylene fiber reinforced cement composite.
Keywords
fiber reinforcement; permeability; PVA fiber; shrinkage crack;
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