混凝土用增强纤维的基本性能与增强机理

摘要

介绍混凝土用增强纤维的基本性能与增强机理.按照纤维类型阐述了常用混凝土增强纤维的力学性能、化学稳定性、热稳定性和分散性以及相对应的应用限制.分析了增强纤维在混凝土中的作用效果,并总结了现阶段几种常见的纤维增强机理.认为:增强纤维作为纤维混凝土的重要组成部分,其性能的优劣对纤维混凝土的整体性能影响较大,同时纤维混凝土的增强机理研究还需要进一步完善.%Basic property and enhancing mechanism of reinforced fiber used for concrete were introduced.Ac-cording to the fiber style,mechanical property,chemical stability,thermal property,dispersity and the correspond-ent application restricts of common reinforced fibers used for concrete were introduced.The effect of reinforced fi-ber in fiber concrete were analyzed.Several common fiber enhancing mechanisms at this stage were summarized. It is considered that reinforced fiber as the important component of fiber concrete,advantages and disadvantages of its properties has a greater impact on the whole property of fiber concrete.At the same time,the enhancing mechanism research of fiber concrete still needs improvement.