{"title":"提高环氧胶粘剂在CFRP/混凝土粘结中的热工性能","authors":"C. Widanage, J. Gamage, V. Attanayake","doi":"10.1109/MERCon52712.2021.9525677","DOIUrl":null,"url":null,"abstract":"Epoxy adhesive used as the bonding agent in the Carbon Fibre Reinforced Polymer/concrete bond shows poor thermal performance. Therefore, this experimental study focused on modifying the epoxy adhesive by blending recycled Polyethylene terephthalate (PET) fibres to enhance thermal performance. The single-lap shear test was conducted by varying the fibre content in the epoxy adhesive to determine the optimum PET fibre to develop the modified epoxy adhesive. The optimum PET fibre content was selected as 30% of the volume of epoxy. The modified adhesive showed a successful bond strength enhancement in both ambient and elevated temperature conditions when compared to the pure epoxy adhesive. The mechanical properties were tested for the developed epoxy-based adhesive. The modified epoxy adhesive achieved an average bond strength of 827.31 MPa (at 30 °C) for 150 mm bond length. Although the glass transition temperature of pure epoxy was between 60 °C and 80 °C, it was between 120°C and 150 °C for the modified epoxy adhesive.","PeriodicalId":6855,"journal":{"name":"2021 Moratuwa Engineering Research Conference (MERCon)","volume":"16 1","pages":"281-285"},"PeriodicalIF":0.0000,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancing the Thermal Performance of Epoxy Adhesive used in the CFRP/Concrete Bond\",\"authors\":\"C. Widanage, J. Gamage, V. Attanayake\",\"doi\":\"10.1109/MERCon52712.2021.9525677\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Epoxy adhesive used as the bonding agent in the Carbon Fibre Reinforced Polymer/concrete bond shows poor thermal performance. Therefore, this experimental study focused on modifying the epoxy adhesive by blending recycled Polyethylene terephthalate (PET) fibres to enhance thermal performance. The single-lap shear test was conducted by varying the fibre content in the epoxy adhesive to determine the optimum PET fibre to develop the modified epoxy adhesive. The optimum PET fibre content was selected as 30% of the volume of epoxy. The modified adhesive showed a successful bond strength enhancement in both ambient and elevated temperature conditions when compared to the pure epoxy adhesive. The mechanical properties were tested for the developed epoxy-based adhesive. The modified epoxy adhesive achieved an average bond strength of 827.31 MPa (at 30 °C) for 150 mm bond length. Although the glass transition temperature of pure epoxy was between 60 °C and 80 °C, it was between 120°C and 150 °C for the modified epoxy adhesive.\",\"PeriodicalId\":6855,\"journal\":{\"name\":\"2021 Moratuwa Engineering Research Conference (MERCon)\",\"volume\":\"16 1\",\"pages\":\"281-285\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-07-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 Moratuwa Engineering Research Conference (MERCon)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MERCon52712.2021.9525677\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 Moratuwa Engineering Research Conference (MERCon)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MERCon52712.2021.9525677","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Enhancing the Thermal Performance of Epoxy Adhesive used in the CFRP/Concrete Bond
Epoxy adhesive used as the bonding agent in the Carbon Fibre Reinforced Polymer/concrete bond shows poor thermal performance. Therefore, this experimental study focused on modifying the epoxy adhesive by blending recycled Polyethylene terephthalate (PET) fibres to enhance thermal performance. The single-lap shear test was conducted by varying the fibre content in the epoxy adhesive to determine the optimum PET fibre to develop the modified epoxy adhesive. The optimum PET fibre content was selected as 30% of the volume of epoxy. The modified adhesive showed a successful bond strength enhancement in both ambient and elevated temperature conditions when compared to the pure epoxy adhesive. The mechanical properties were tested for the developed epoxy-based adhesive. The modified epoxy adhesive achieved an average bond strength of 827.31 MPa (at 30 °C) for 150 mm bond length. Although the glass transition temperature of pure epoxy was between 60 °C and 80 °C, it was between 120°C and 150 °C for the modified epoxy adhesive.
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