STUDY ON EFFECTUAL APPLICATIONS OF FIBER RECOVERED FROM SCRAPPED FRP AS REINFORCING FIBER FOR CONCRETE

本文介绍了有效利用废旧纤维增强塑料（FRP）作为砂浆与混凝土掺合料的方法。试验研究了利用航空粉碎机回收分解废弃玻璃钢后再生的玻璃纤维配制不连续纤维增强砂浆的混合方法和抗弯性能。试验结果表明，随着纤维含量的增加，砂浆的抗弯强度和韧性均有所提高。此外，用高炉矿渣代替水泥30% ~ 50%可以抑制碱变质玻璃纤维砂浆强度随龄期的下降。

This research describes methods to make effective use of the scrapped Fiber Reinforced Plastics (FRP) for admixture of mortar and concrete. The mixing method and the flexural property of discontinuous fiber reinforced mortar used the glass fiber which was reproduced by to reclaim and decompose the scrapped FRP with the aerial pulverizer were experimentally investigated.From this experiment it was found that the flexural strength and the toughness of mortar were improved with increase of the fiber content. Furthermore, it is possible to restrain the decrease of mortar strength with the ages by glass fiber of an alkali deterioration through replacing cement with blast-furnace slag by 30% to 50%.