Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars
A significant number of studies have been conducted on the tensile properties of GFRP bars embedded in concrete under different environments. However, most of these studies have been experimentally based on the environmental immersion test after standard-curing and the lack of influence on the tensi...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2017/4262703 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561902953168896 |
|---|---|
| author | Wen-rui Yang Xiong-jun He Kai Zhang Yang Yang Li Dai |
| author_facet | Wen-rui Yang Xiong-jun He Kai Zhang Yang Yang Li Dai |
| author_sort | Wen-rui Yang |
| collection | DOAJ |
| description | A significant number of studies have been conducted on the tensile properties of GFRP bars embedded in concrete under different environments. However, most of these studies have been experimentally based on the environmental immersion test after standard-curing and the lack of influence on the tensile properties of GFRP bars embedded in concrete during the curing process of concrete. This paper presents the results of the microscopic structures through scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and tensile properties of GFRP bars, which were employed to investigate the combined effects of curing temperatures and alkaline concrete on tensile properties of GFRP bars. The results showed that the higher curing temperature aggravated the influence of the alkaline concrete environment on GFRP bars but did not change the mechanisms of mechanical degradation of the GFRP bars. The influence of different curing temperatures on the tensile strength of GFRP bars was different between the bare bar and bars in concrete. Finally, the exponential correlation equation of two different test methods was established, and the attenuation ratio of the tensile strength of GFRP bars embedded in concrete under different curing temperatures was predicted by the bare test. |
| format | Article |
| id | doaj-art-3374c3a57f87442da227074d21a36f84 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-3374c3a57f87442da227074d21a36f842025-02-03T01:23:50ZengWileyInternational Journal of Polymer Science1687-94221687-94302017-01-01201710.1155/2017/42627034262703Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP BarsWen-rui Yang0Xiong-jun He1Kai Zhang2Yang Yang3Li Dai4School of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaDepartment of Road and Material, Jiangxi Transportation Institute, Nanchang 330025, ChinaSchool of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Transportation, Wuhan University of Technology, Wuhan 430063, ChinaA significant number of studies have been conducted on the tensile properties of GFRP bars embedded in concrete under different environments. However, most of these studies have been experimentally based on the environmental immersion test after standard-curing and the lack of influence on the tensile properties of GFRP bars embedded in concrete during the curing process of concrete. This paper presents the results of the microscopic structures through scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and tensile properties of GFRP bars, which were employed to investigate the combined effects of curing temperatures and alkaline concrete on tensile properties of GFRP bars. The results showed that the higher curing temperature aggravated the influence of the alkaline concrete environment on GFRP bars but did not change the mechanisms of mechanical degradation of the GFRP bars. The influence of different curing temperatures on the tensile strength of GFRP bars was different between the bare bar and bars in concrete. Finally, the exponential correlation equation of two different test methods was established, and the attenuation ratio of the tensile strength of GFRP bars embedded in concrete under different curing temperatures was predicted by the bare test.http://dx.doi.org/10.1155/2017/4262703 |
| spellingShingle | Wen-rui Yang Xiong-jun He Kai Zhang Yang Yang Li Dai Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars International Journal of Polymer Science |
| title | Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars |
| title_full | Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars |
| title_fullStr | Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars |
| title_full_unstemmed | Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars |
| title_short | Combined Effects of Curing Temperatures and Alkaline Concrete on Tensile Properties of GFRP Bars |
| title_sort | combined effects of curing temperatures and alkaline concrete on tensile properties of gfrp bars |
| url | http://dx.doi.org/10.1155/2017/4262703 |
| work_keys_str_mv | AT wenruiyang combinedeffectsofcuringtemperaturesandalkalineconcreteontensilepropertiesofgfrpbars AT xiongjunhe combinedeffectsofcuringtemperaturesandalkalineconcreteontensilepropertiesofgfrpbars AT kaizhang combinedeffectsofcuringtemperaturesandalkalineconcreteontensilepropertiesofgfrpbars AT yangyang combinedeffectsofcuringtemperaturesandalkalineconcreteontensilepropertiesofgfrpbars AT lidai combinedeffectsofcuringtemperaturesandalkalineconcreteontensilepropertiesofgfrpbars |