摘要
为碳纤维增强MPC基复合材料的设计提供依据,对碳纤维筋处理方式,MPC基体性能,碳纤维筋埋长量等进行研究,得出表面处理方式对碳纤维筋轴向抗拉强度和其在MPC基体中拉拔力有显著影响。掺适量FA可提高28d龄期时碳纤维筋的拉拔力。碳纤维筋的拉拔力随其在MPC基体中的埋长增加而明显提高,当碳纤维筋埋长量约为2cm时,其在MPC基体中的拉拔力达到碳纤维筋本身的轴向抗拉强度。
In order to provide basis for design of carbon fiber reinforced MPC-base composite material, researches are carried out on the processing method of carbon fiber reinforced plastic （CFRP） bar, surface treatment method, basic MPC performance and embedded length of CFRP bar, etc. It is found that the surface treatment method has obvious influences on axial tensile strength of CFRP bar and the withdraw resistance in MPC base. Appropriate amount of FA could improve the 28d withdrawing resistance of CFRP bar. The withdrawing resistance of CFRP bar is obviously increased when the embedded length in MPC base increases, and it reaches the axial tensile strength when the embedded length is about 2cm.
出处
《建筑技术》
2013年第5期411-414,共4页
Architecture Technology
关键词
混凝土构件
磷酸镁胶凝材料
碳纤维筋
强度
concrete component
magnesium phosphate cementing material
CFRP bar
strength
