几种纤维在增强混凝土中的应用

Applications of fibers reinforced concrete

介绍了聚丙烯纤维、碳纤维、钢纤维和玻璃纤维增强混凝土的基本性能,其中聚丙烯纤维有较好的技术经济性能,已在混凝土工程中广泛应用;由于碳纤维等后3种纤维有高强、高模和韧性,可用于次结构甚至主结构的增强或加固用。同时简介了国内外研究情况以及一些实际应用案例,指出今后有待研究的问题和研究的重点及方向。

Introduced the fundamental characteristics of fiber reinforced concretes, which were reinforced by polypropylene fiber, carbon fiber, steel fiber and glass fiber. The polypropylene fiber was widely used in concrete constructions due to its perfect technical properties and low cost. The other three fibers, which are of high strength and high modulus properties, may be used in construction mainframe. The researches and applications of the four type fibers in concrete are summarized. We also indicated the future research topics and directions.