日本一家公司最近开发了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，目前该产品已用于建筑工程的实用试验阶段。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Ｆ... A Japanese company has recently developed a fiber-reinforced plastic (FRP) rib that uses polyvinyl acetal fiber (collectively referred to as vinylon) as a substitute for reinforcing steel. Its strength and elasticity are excellent. At present, the product has been used for practical tests in construction projects. stage. In the past, reinforcing steel used for reinforcing concrete had high rigidity and toughness but was heavy and rusted. The use of polyvinyl acetal fiber F...