Direct Service Temperature Exposure Effect on Bond Behaviour between NSM Composites and Concrete Masonry Units
The durability of fiber reinforced polymer (FRP) for strengthening structural elements has been ratherextensively studied in the literature. The influence of directly applying temperature on bond behaviourrepresents an open topic that needs to be considered in more detail. This study is one of the initialstudies to investigate the advanced composite bond behaviour when subjected to tension forcesimultaneously with applying temperature. The temperatures considered in this study were at freezing -18 ⁰C (0 ⁰F), ambient 21⁰C (70 ⁰F), and high service temperature 49 ⁰C (120 oF), which covers muchof the spectrum of structural element service temperatures in the field. The key parameters investigatedinclude different strengthening system under different level of temperature. Specimens were subjectedto single-lap direct shear simultaneously with applying temperature, while other specimens were testedafter exposure to the cycles of heating and cooling temperature. The results showed a high reductionof FRP-epoxy bond properties up to 59% when exposed to high service temperatures.
Z. Al-Jaberi et al., "Direct Service Temperature Exposure Effect on Bond Behaviour between NSM Composites and Concrete Masonry Units," Proceedings of the 9th Biennial Conference on Advanced Composites in Construction (2019, Birmingham, United Kingdom), pp. 149-154, NetComposites Limited, Sep 2019.
9th Biennial Conference on Advanced Composites in Construction 2019, ACIC 2019 (2019: Sep. 3-5, Birmingham, United Kingdom)
Civil, Architectural and Environmental Engineering
Mechanical and Aerospace Engineering
Keywords and Phrases
Composite Structures; Fiber Reinforced Plastics, Advanced Composites; Bond Properties; Concrete Masonry Units; Fiber Reinforced Polymers; Heating and Cooling; Service Temperature; Strengthening Systems; Structural Elements, Concretes
Article - Conference proceedings
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01 Sep 2019