Enhancing the interfacial bond performance of engineered cementitious composites and concrete

Huang, Jincan1; Hou, Wei1,2; Li, Zhiqiang3; Liu, Yang1,2; Zhang, Yixin1,2

2024-06-01

10.1177/13694332241252275

ADVANCES IN STRUCTURAL ENGINEERING   影响因子和分区

1369-4332

2048-4011

This study aims to investigate the influence of different surface treatments, including smooth interface, rough interface, anchor bolt connection, and epoxy bonding agent, on the shear resistance of Engineered Cementitious Composites (ECC)-concrete interface through bi-surface shear testing. The experimental results show that the interfacial shear strength between ECC and concrete is significantly enhanced by the implementation of the three interface treatment methods, as opposed to the smooth interface. Among these methods, the anchor bolt connection exhibits the greatest improvement in interfacial bonding performance. Notably, cohesive failure is observed in the anchor bolt connection method, while the other three methods result in adhesive failure, with only the anchor bolt connection method displaying ductile failure behavior. Following a comprehensive review of relevant studies and the outcomes of this experiment, three distinct interface bonding mechanisms were identified and the forces contributing to the bond were analyzed. Results indicated that the interfacial bond strength is notably influenced by the surface roughness. These research findings substantiate the viability of utilizing the anchor bolt connection method, particularly in applications where ductility requirements in the repair layer are essential for structural integrity.

engineered cementitious composites concrete repair bond strength surface treatment bonding mechanism

SCI ; EI

英语

其他

National Natural Science Foundation of China["52178210","52108454","52208313"] ; Collaborative Innovation Platform Project of Fuzhou-Xiamen-Quanzhou National Self-Innovation Zone[3502ZCQXT2022002]

Construction & Building Technology ; Engineering

Construction & Building Technology ; Engineering, Civil

WOS:001216532000001

SAGE PUBLICATIONS INC

ENGINEERING

Web of Science

1.Huaqiao Univ, Coll Civil Engn, 668 Jimei Ave, Xiamen 361021, Peoples R China
2.Key Lab Struct Engn & Disaster Prevent Fujian Prov, Xiamen, Peoples R China
3.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China

Huang, Jincan,Hou, Wei,Li, Zhiqiang,et al. Enhancing the interfacial bond performance of engineered cementitious composites and concrete[J]. ADVANCES IN STRUCTURAL ENGINEERING,2024,27(8).

Huang, Jincan,Hou, Wei,Li, Zhiqiang,Liu, Yang,&Zhang, Yixin.(2024).Enhancing the interfacial bond performance of engineered cementitious composites and concrete.ADVANCES IN STRUCTURAL ENGINEERING,27(8).

Huang, Jincan,et al."Enhancing the interfacial bond performance of engineered cementitious composites and concrete".ADVANCES IN STRUCTURAL ENGINEERING 27.8(2024).