（1 南京工业大学土木工程学院， 南京 211816；  2 江苏城乡建设职业学院， 常州 213000；3 南京市浦口区建筑安装工程质量监督站，  南京 210000；  4 南京工大建设工程技术有限公司， 南京 211800)

［摘要］通过对26个试件进行自密实混凝土与预制墙板的界面粘结滑移试验，得到了界面粘结试件的受力过程、破坏形式以及试件的剪应力滑移（τ—-S）曲线。主要研究自密实混凝土强度、混凝土类型（NC与SCC）、界面尺寸、粘结面的处理措施（凿毛与界面剂）、膨胀剂掺量和其他主要因素对自密实混凝土与预制墙板界面粘结性能的影响。试验结果表明：界面粘结破坏主要发生在结合面处，且大部分的试件两个结合面的位移不是同步的；混凝土强度、混凝土类型、界面剂以及膨胀剂掺量均对自密实混凝土与预制墙板界面粘结性能有较大的影响；分析粘结滑移曲线将试件的受力过程划分为：初始刚度阶段、弹性变形阶段、塑性变形阶段、塑性破坏阶段。

［关键词］自密实混凝土； 预制墙板； 剪应力-滑移曲线； 界面粘结性能

中图分类号：TU375文献标识码：A文章编号：1002-848X(2018)22-0072-06

Study on shear performance of bonding interface between self-compacting concrete and prefabricated concrete components

Meng Longfei1,2, Zhu Puning3, Song Xiang1, Miao Hanliang1,4, Ye Yanhua1

(1 College of Civil Engineering， Nanjing Tech University， Nanjing 211816， China; 2 Jiangsu Urban and Rural Construction College, Changzhou 213000, China; 3 Nanjing Pukou Construction and Installation Engineering Quality Surveillance, Nanjing 210000, China; 4 The Nanjing Technical University Construction Engineering Technology Co., Ltd.， Nanjing 211800， China)

Abstract:Through the interface bond-slip tests between self-compacting concrete and the prefabricated panel on 26 specimens, loading process, failure mode and shear stress-slip curve were obtained. The impacts of self-compacting concrete strength, concrete type(NC and SCC), interface size, bonding surface treatment measures (chiseling and interface agent), expansion agent dosage and other main factors on the interface bonding performance of self-compacting concrete and prefabricated panel. The test results show that the interface bond failure mainly occurs at the joint surface, and the displacements of the two interfaces of most of the specimens are not synchronous. The concrete strength, concrete type, interface agent and expansion agent dosage have great influence on the interface bonding performance of self-compacting concrete and prefabricated panel. The bond-slip curve is analyzed to divide the specimen stress process into four stages, including: initial stiffness stage, elastic deformation stage, plastic deformation stage and plastic failure stage.

Keywords:self-compacting concrete; prefabricated panel; shear stress-slip curve; interface bonding performance

*国家自然科学基金（51178218）。

作者简介：孟龙飞，硕士研究生，Email: menglongfei@163.com。