Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete
By investigating the bond performance between glass-fiber-reinforced polymer (GFRP) bars and concrete, GFRP bars can be better applied to concrete structures as a building material. This paper considered the effects of three different GFRP bar surface treatments, three bonding lengths, corrosive sol...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-08-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/13/9/2126 |
| _version_ | 1827726939677261824 |
|---|---|
| author | Bo Wang Gejia Liu He Miao |
| author_facet | Bo Wang Gejia Liu He Miao |
| author_sort | Bo Wang |
| collection | DOAJ |
| description | By investigating the bond performance between glass-fiber-reinforced polymer (GFRP) bars and concrete, GFRP bars can be better applied to concrete structures as a building material. This paper considered the effects of three different GFRP bar surface treatments, three bonding lengths, corrosive solution, and immersion time on the bonding strength. The test results indicated that the bond strength decreases with the increase in the diameter and bond length. The bonding between GFRP bars and concrete can be improved by treating the surface of the bars in different ways. Compared with the control group, the bond strength of the specimens in the saline solution decreased by 1.3–21.4%, and the bond strength of the specimens in the alkaline solution decreased by 26.5–38.8%. In the corrosive environment, the bond properties are degraded. A bond strength calculation formula considering the surface treatment method of the GFRP bars was proposed. The prediction formula of the bond strength retention rate between the GFRP bar and concrete in the corrosive environment was established. The formula was validated with the available research data and the calculated values agreed well with the test values. The MBPE model and CMR model are modified to establish the bond-slip model of the GFRP bars and concrete in the corrosive environment. The model curve is close to the test curve. This paper provides a theoretical basis for future research on the bond-slip performance of GFRP bars and concrete. |
| first_indexed | 2024-03-10T22:58:27Z |
| format | Article |
| id | doaj.art-83c2bf8249014f8db30e722a1860140c |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T22:58:27Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-83c2bf8249014f8db30e722a1860140c2023-11-19T09:49:47ZengMDPI AGBuildings2075-53092023-08-01139212610.3390/buildings13092126Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and ConcreteBo Wang0Gejia Liu1He Miao2School of Civil Engineering, Jilin Jianzhu University, Changchun 130118, ChinaSchool of Civil Engineering, Jilin Jianzhu University, Changchun 130118, ChinaSchool of Civil Engineering, Jilin Jianzhu University, Changchun 130118, ChinaBy investigating the bond performance between glass-fiber-reinforced polymer (GFRP) bars and concrete, GFRP bars can be better applied to concrete structures as a building material. This paper considered the effects of three different GFRP bar surface treatments, three bonding lengths, corrosive solution, and immersion time on the bonding strength. The test results indicated that the bond strength decreases with the increase in the diameter and bond length. The bonding between GFRP bars and concrete can be improved by treating the surface of the bars in different ways. Compared with the control group, the bond strength of the specimens in the saline solution decreased by 1.3–21.4%, and the bond strength of the specimens in the alkaline solution decreased by 26.5–38.8%. In the corrosive environment, the bond properties are degraded. A bond strength calculation formula considering the surface treatment method of the GFRP bars was proposed. The prediction formula of the bond strength retention rate between the GFRP bar and concrete in the corrosive environment was established. The formula was validated with the available research data and the calculated values agreed well with the test values. The MBPE model and CMR model are modified to establish the bond-slip model of the GFRP bars and concrete in the corrosive environment. The model curve is close to the test curve. This paper provides a theoretical basis for future research on the bond-slip performance of GFRP bars and concrete.https://www.mdpi.com/2075-5309/13/9/2126glass-fiber-reinforced polymer (GFRP)concretepulloutbond-slip |
| spellingShingle | Bo Wang Gejia Liu He Miao Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete Buildings glass-fiber-reinforced polymer (GFRP) concrete pullout bond-slip |
| title | Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete |
| title_full | Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete |
| title_fullStr | Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete |
| title_full_unstemmed | Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete |
| title_short | Experimental Study on the Bond Performance between Glass-Fiber-Reinforced Polymer (GFRP) Bars and Concrete |
| title_sort | experimental study on the bond performance between glass fiber reinforced polymer gfrp bars and concrete |
| topic | glass-fiber-reinforced polymer (GFRP) concrete pullout bond-slip |
| url | https://www.mdpi.com/2075-5309/13/9/2126 |
| work_keys_str_mv | AT bowang experimentalstudyonthebondperformancebetweenglassfiberreinforcedpolymergfrpbarsandconcrete AT gejialiu experimentalstudyonthebondperformancebetweenglassfiberreinforcedpolymergfrpbarsandconcrete AT hemiao experimentalstudyonthebondperformancebetweenglassfiberreinforcedpolymergfrpbarsandconcrete |