Bonding Performance of Concrete Structure Strengthened with Ultra-High-Performance Concrete Under Bending Experiment DOI Creative Commons
Chao Zhu,

You Feng,

Jie Tang

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(12), P. 4040 - 4040

Published: Dec. 19, 2024

Ultra-high-performance concrete is widely used in bridge strengthening to improve mechanical performance and durability. Interfacial bonding a key factor ensuring the effectiveness of ultra-high-performance strengthening. The bending test UHPC–NC composite structure was carried out this article. effects groove treatment type epoxy resin were considered discuss damage modes, load–deflection relationships, strengths. interfacial tensile strength distribution pattern cracks clarified. results showed that (a) only 22.2% groove-treated specimens failed due surface failure, indicating has high degree reliability; (b) with an adhesive interface lowest. It 21% higher than pure normal specimen, effective synergistic force cannot be achieved; (c) treated positive trapezoidal keyway exhibited highest strength, increase approximately 200% compared specimens. right-angled inverted grooves increased by 100% Based on established three-dimensional numerical model analysis under economic safe conditions, specimen exhibits superior bonding–tensile performances.

Language: Английский

Experimental study on the mechanical properties of polyoxymethylene textile-reinforced ultrahigh performance concrete with different structural parameters DOI

Qihui Gu,

Xiaoqing Yang, Zhiqian Yang

et al.

Structures, Journal Year: 2025, Volume and Issue: 75, P. 108816 - 108816

Published: April 3, 2025

Language: Английский

Citations

0
Bonding Performance of Concrete Structure Strengthened with Ultra-High-Performance Concrete Under Bending Experiment DOI Creative Commons
Chao Zhu,

You Feng,

Jie Tang

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(12), P. 4040 - 4040

Published: Dec. 19, 2024

Ultra-high-performance concrete is widely used in bridge strengthening to improve mechanical performance and durability. Interfacial bonding a key factor ensuring the effectiveness of ultra-high-performance strengthening. The bending test UHPC–NC composite structure was carried out this article. effects groove treatment type epoxy resin were considered discuss damage modes, load–deflection relationships, strengths. interfacial tensile strength distribution pattern cracks clarified. results showed that (a) only 22.2% groove-treated specimens failed due surface failure, indicating has high degree reliability; (b) with an adhesive interface lowest. It 21% higher than pure normal specimen, effective synergistic force cannot be achieved; (c) treated positive trapezoidal keyway exhibited highest strength, increase approximately 200% compared specimens. right-angled inverted grooves increased by 100% Based on established three-dimensional numerical model analysis under economic safe conditions, specimen exhibits superior bonding–tensile performances.

Language: Английский

Citations

0