玻璃纤维栅水泥基复合材料力学性能研究  

STUDY ON MECHANICAL PROPERTIES OF GLASS FIBER GRID REINFORCED CEMENT MATRIX COMPOSITES

作　　者：吴昊宇 李地红[1] 侯云芬[1] 

机构地区：[1]北京建筑大学,北京100044

出　　处：《低温建筑技术》2017年第11期10-15,共6页Low Temperature Architecture Technology

摘　　要：在玻璃长纤维两端上滴加环氧树脂制成栅栏,将玻璃纤维栅掺入混凝土,旨在解决纤维增强混凝土界面粘结性差、纤维两端应力集中及因此产生的两相滑移等问题。在玻璃纤维两端制作栅栏的方式使得纤维栅与混凝土之间产生嵌固效应,形成结构约束,有效控制了纤维两端的滑移。通过对比短切玻璃纤维掺加方式与玻璃纤维栅掺加方式制作的砂浆性能,结果证明,采用纤维栅方式增强,规避并解决了纤维粘结性差与纤维滑移的弊病,使得玻璃纤维栅增强水泥基材料具有良好的力学性能与发展前景。Add epoxy resin onto long glass fibers to make fence and then add glass fiber grid into concrete . It is adopted in order to solve the problem of poor interracial adhesion of fiber reinforced con- crete, stress concentration at both ends of fiber and the resulting two-phase slip. It makes the embedded effect between the fiber and the concrete to form structural constraint and the slippage of both ends of the fiber is effectively controlled. The properties of chopped glass fiber reinforced mortar and glass fiber grid reinforced mortar are compared, Result show that glass fiber grid addition way avoids the disadvantages of poor interfacial bonding between the two phases and fiber slippage to make glass fiber grid reinforced concrete has good mechanical properties and development prospects.

关 键 词：玻璃纤维栅 界面层 应力集中 力学性能 结构约束 

分 类 号：TU528.581[建筑科学—建筑技术科学]