新旧混凝土粘结断裂韧度的研究

摘要

通过新旧混凝土粘结面不同的界面处理方式、不同的界面粘结材料试件进行断裂韧度测试，探索了新旧混凝土粘结的断裂特征。研究结果表明，新旧混凝土粘结面的处理方式，界面粘结材料及粘结面处理方式和界面材料的交互作用对断裂韧度的影响是非常显著的。%This paper made fracture toughness test through the different interface treatment methods of new and old concrete bonding surfaces, different interracial bonding material specimens, explored the fracture characteristics of new and old concrete. The results showed that, the treatment methods of new and old eoncrete bonding surfaces, interface bonding material and bonding surface processing methods and the interaction of interface material had very significant impact on fracture toughness.