| Summary: | 碩士 === 國立臺北科技大學 === 土木與防災研究所 === 95 === Nowadays, the major material used for jacket strengthens of RC beam repair is CFRP, and the bonding material is Epoxy. However, Epoxy’s nature is unable to against higher temperature and no solution to solve this problem at the modern times. In the present research, the bonding material is replaced from Epoxy to Geopolymer. And for bending control, covered GFRP and CFRP at the bottom of RC beam to process strengthening in flexure. Discussed the benefit of CFRP and GFRP by apply different cover types plus cover layers. The preliminary result showing that Geopolymer bonding with GFRP can really increase the bonding strengthens of RC beam. On the other hand, Geopolymer’s bonding ability is not as well as Epoxy so it is easier to caused interfacial debonding damage. For probe into the best bonding material and the effective strengthen tactic. The present research is not only covering at the bottom of RC beam, but also use U type wrap; and the result is showing positive.
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