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日本的尤尼切卡公司最近开发下一种用聚乙烯醇缩醛纤维(统称维尼纶)替代钢筋的纤维增强塑料(FRP)筋,其强度与弹性均甚优异,目前已进入了建设公司的实用试验阶段。 以往,用于增强混凝土的钢筋具有较高的刚性、韧性,但重量大且会生锈。而使用了聚乙烯醇缩醛纤维的FRP筋则可解决钢筋存在的这些问题,它与水泥的粘接性能也佳,因此以土木建设领域为中心,预计将有较大的需求。
Japan’s Unichika recently developed the next type of fiber-reinforced plastic (FRP) ribs that use polyvinyl acetal fibers (collectively referred to as vinylon) to replace steel bars. Their strength and elasticity are excellent, and they have now entered construction companies. Practical test phase. In the past, reinforcing steel used for reinforcing concrete had high rigidity and toughness, but it was heavy and rusted. The use of polyvinyl alcohol acetal fiber FRP tendons can solve these problems in the presence of steel, cement and its adhesion is also good, so in the field of civil construction as the center, is expected to have greater demand.