哈尔滨工业大学学报（英文版）2007，Vol.14Issue(6)：842-845,4.
Freeze-thaw bond properties of new-old concrete
Freeze-thaw bond properties of new-old concrete
摘要
Abstract
Using composite cubic specimens of new-old concrete, the bond splitting tensile strength and failure mechanism for the interface of new-old concrete in saturating state were explored when exposed to freeze-thaw cycling. Specimens were experienced for 0,25,50,75,100 and 125 freezing cycles. The roughness and ad hesion agent including cement paste, cement mortar and cement paste with 10 percent of UEA expanding agent were also investigated. The test results indicate that the bond splitting tensile strength decreases with increased numbers of freezing-and-thawing cycles. The roughness and adhesion agent have different effects on the bond strength.关键词
new-old concrete/ freeze-thaw cycling/ splitting tensile strength/ roughness/ adhesion agent/ expanding agentKey words
new-old concrete/ freeze-thaw cycling/ splitting tensile strength/ roughness/ adhesion agent/ expanding agent分类
建筑与水利引用本文复制引用
..Freeze-thaw bond properties of new-old concrete[J].哈尔滨工业大学学报（英文版）,2007,14(6):842-845,4.基金项目
Sponsored by the National Natural Science Foundation of China( Grant No. 59778045). （ Grant No. 59778045）
