纤维混凝土增强机理分析  

Analysis of reinforcement mechanism of fiber concrete

作　　者：梅国栋 段文付 

机构地区：[1]佛山市顺德区碧桂园物业发展有限公司,广东佛山528312 [2]武汉光谷建设投资有限公司,湖北武汉430205

出　　处：《江苏建材》2015年第2期18-20,23,共4页Jiangsu Building Materials

摘　　要：纤维增强机理,即纤维改善混凝土基体各方面性能的作用机制,是描述和解释纤维对基体性能改良作用的理论基础。现有的纤维增强机理,一般都是在纤维增强均质材料相关理论的基础上演绎而来。混凝土基体的构造比塑料、金属等均质材料要复杂得多,因此基于纤维增强均质材料的纤维增强机理,并不能完全适用于纤维混凝土。纤维对混凝土基体的作用主要有阻裂、增强、增韧三种,相比于普通混凝土,纤维混凝土各种综合性能的提高或改善都与这三种作用有关。Fiber-reinforced mechanism, namely fiber to improve the performance of all aspects of the concrete matrix,is to describe and explain the theoretical foundation of fiber on properties of matrix effects. Existing fiber-reinforced mechanism is usually deducted from the homogeneous materials relevant theory of fiber reinforcement. It must be noted that the constrcution of concrete matrix is more complex than other homogeneous materials such as plastic, metal. Therefore, fiber-reinforced mechanism of homogeneous materials can not be completely applicable to fiber reinforced concrete. Overall, the effects of fiber on the concrete matrix are mainly three aspects including crack resistance,reinforcement and toughness. Compared to normal concrete, the three aspects can increase or improve the overall performancs of fiber reinforced concrete.

关 键 词：纤维增强机理 混杂纤维 受拉破坏机理 混杂效应 

分 类 号：TU528[建筑科学—建筑技术科学]