Published July 3, 2023
| Version v1
Conference paper
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NATURAL OUTDOOR AND LABORATORY-CONTROLLED AGEING OF EPOXY ADHESIVES AND CFRP LAMINATES AFTER FOUR YEARS OF EXPOSURE
Authors/Creators
- 1. University of Minho, Portugal
- 2. Laboratório Nacional de Engenharia Civil, Portugal
Description
Ageing of epoxy adhesive and carbon fibre reinforced polymer (CFRP) laminate was addressed in this
work. The specimens were exposed to laboratory-controlled (20 °C/55% RH, and water immersion at
20 °C) and outdoor (ageing mainly promoted by carbonation, freeze-thaws, airborne chlorides, and
elevated temperatures) conditioning for up to four years. The results from tensile tests showed water
immersion of the epoxy adhesive as the most severe exposure condition, yielding to 66% and 75%
decrease in tensile strength and elastic modulus, respectively. In contrast, CFRP laminate generally
improved the same mechanical properties in outdoor environments, the highest being 16.1% and
10.4%, respectively.
Notes
Paper 258
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CICE_2023_paper_258.pdf
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