Scholarlink

The use of Carbon Fibre Reinforced Polymer (CFRP) composites as a strengthening solution for reinforced concrete structures has been widely accepted as a promising method to increase structural and durability performance; however, the durability and long-term performance of this solution still needs further research. The effect of 6 years of laboratory and outdoor exposures of CFRP-concrete bond specimens and constituent materials is investigated. Different tests (tensile tests of epoxy adhesives and CFRP laminates, concrete compression tests, and pull-out shear tests of the CFRP-concrete bond when the laminate is applied using the Near-Surface Mounted (NSM) technique) were performed on specimens collected from two laboratory environments (one with conditioning of specimens at 20 °C and 55% RH, and the other at 20 °C in full water immersion state) and four outdoor environments (mainly to promote the effects of carbonation, elevated temperatures, freeze-thaws, and airborne chlorides). The results from the above tests for unexposed and exposed samples are presented and discussed.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Durability of NSM CFRP-to-Concrete Bond After Six Years of Exposure to Laboratory and Outdoor Environments

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Aloys Dushimimana,
  • Sayed A. Jawed,
  • Luís Correia,
  • João M. Pereira,
  • Susana Cabral-Fonseca,
  • José Sena-Cruz

摘要

The use of Carbon Fibre Reinforced Polymer (CFRP) composites as a strengthening solution for reinforced concrete structures has been widely accepted as a promising method to increase structural and durability performance; however, the durability and long-term performance of this solution still needs further research. The effect of 6 years of laboratory and outdoor exposures of CFRP-concrete bond specimens and constituent materials is investigated. Different tests (tensile tests of epoxy adhesives and CFRP laminates, concrete compression tests, and pull-out shear tests of the CFRP-concrete bond when the laminate is applied using the Near-Surface Mounted (NSM) technique) were performed on specimens collected from two laboratory environments (one with conditioning of specimens at 20 °C and 55% RH, and the other at 20 °C in full water immersion state) and four outdoor environments (mainly to promote the effects of carbonation, elevated temperatures, freeze-thaws, and airborne chlorides). The results from the above tests for unexposed and exposed samples are presented and discussed.