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원종필 ( Won Jong Pil ),황금식 ( Hwang Keum Sic ),윤종환 ( Yoon Jong Hwan ),장필성 ( Jang Pil Sung ),김명균 ( Kim Myung Koun ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
Plastic shrinkage cracking 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 cracking is a major concern for concrete, especially for flat structural such as pavement, slabs for industrial factories and walls. This study has been performed to obtain the plastic shrinkage properties of hydrophilic fiber reinforced mortar and concrete. The results of tests of the hydrophilic fibers were compared with plain and polypropylene fibers. Test results indicated that hydrophilic poly vinylalcohol fiber reinforcement showed an ability to reduce the total crack area and maximum crack width significantly( as compared to plain and polypropylene fiber reinforcement).