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EFFECTIVENESS OF FRCM SYSTEM IN STRENGTHENING RC BEAMS IN SHEAR USING HYBRID NSE/EB TECHNIQUE |
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| รหัสดีโอไอ | |
| Title | EFFECTIVENESS OF FRCM SYSTEM IN STRENGTHENING RC BEAMS IN SHEAR USING HYBRID NSE/EB TECHNIQUE |
| Creator | Usama Ebead, Tadesse Wakjira |
| Contributor | Mohamed Asem Abdul-Malak, Hiam Khoury, Amarjit Singh, Siamak Yazdani |
| Publisher | ISEC PRESS |
| Publication Year | 2561 |
| Keyword | Rehabilitation, Near surface embedded/externally bonded, Fabric reinforced cementitious matrix (FRCM), Reinforce concrete (RC) beam |
| Abstract | 1. This paper presents an experimental study on the efficacy of a recently introduced hybrid "near surface embedded/ externally bonded" NSE/EB fabric reinforced cementitious matrix (FRCM). Seven medium scale RC beams, deficient in shear, were constructed and tested under three-point loading. Six beams were strengthened using hybrid NSE/EB-FRCM technique and one beam was left un-strengthened as a reference. Two main test variables were considered 2. viz., strengthening configuration: full versus intermittent strengthening configuration and FRCM type: glass FRCM versus polyparaphenylene benzobisoxazole (PBO). The test results revealed that the hybrid NSE/EB-FRCM strengthening technique is effective in enhancing the shear capacity of the strengthened beams. The strengthened specimens showed an average of 67% higher shear capacity relative to the reference specimen. With regard to the FRCM type, G-FRCM strengthened specimens showed an average of 73% enhancement in the shear capacity, which was 12% higher than the value for PBO-FRCM counterpart. Moreover, the strengthened beams showed higher deflection at the ultimate load than that of the reference specimen. Furthermore, the hybrid NSE/EB-FRCM technique has shown to be a promising alternative to the conventionally used externally bonded FRCM system with the potential to reduce the debonding of FRCM from the concrete substrate. |
| ISBN | 978-0-9960437-5-5 |
| Language | English |
| URL Website | https://www.isec-society.org/ |
| Website title | ISEC Society |
