Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns
Abstract A total of 40 fiber reinforced polymer (FRP) and polyvinyl chloride (PVC) confined spontaneous combustion gangue coarse-aggregate concrete (SAC) specimens were subjected to axial compression tests and theoretical studies. The main analysis focused on the impact of the replacement rate of sp...
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| Format: | Article |
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Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-51928-5 |
| _version_ | 1827377416732934144 |
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| author | Jinyang Zhang Haiqing Liu Jinli Wang Ming Lei Zimu Chen |
| author_facet | Jinyang Zhang Haiqing Liu Jinli Wang Ming Lei Zimu Chen |
| author_sort | Jinyang Zhang |
| collection | DOAJ |
| description | Abstract A total of 40 fiber reinforced polymer (FRP) and polyvinyl chloride (PVC) confined spontaneous combustion gangue coarse-aggregate concrete (SAC) specimens were subjected to axial compression tests and theoretical studies. The main analysis focused on the impact of the replacement rate of spontaneous combustion gangue (SCG), the type of CFRP confinement, and the number of CFRP layers on the axial compression performance of CFRP–PVC confined SAC (CFRP–PVC–SAC). The results show that CFRP–PVC confinement can effectively enhance the axial compressive capacity, axial deformation, and lateral deformation of the components. The increase in strength ranges from 1.68 to 3.48 times, while the increase in strain ranges from 5.21 to 11.98 times. The crack patterns and expansive behavior of the coal gangue concrete under confinement exhibit significant differences compared to ordinary concrete. In addition, based on the framework of the existing FRP-confined plain concrete model, a modified model is established to facilitate prediction of stress–strain relationships for short columns of CFRP–PVC–SAC, with the calculated results in good agreement with experimental values. |
| first_indexed | 2024-03-08T12:38:51Z |
| format | Article |
| id | doaj.art-e3bbe71cee4145178854b5014a8cfdf7 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T12:38:51Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e3bbe71cee4145178854b5014a8cfdf72024-01-21T12:18:19ZengNature PortfolioScientific Reports2045-23222024-01-0114111710.1038/s41598-024-51928-5Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columnsJinyang Zhang0Haiqing Liu1Jinli Wang2Ming Lei3Zimu Chen4School of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversityChina Construction Fifth Engineering Division Corp., Ltd.China Construction Fifth Engineering Division Corp., Ltd.Abstract A total of 40 fiber reinforced polymer (FRP) and polyvinyl chloride (PVC) confined spontaneous combustion gangue coarse-aggregate concrete (SAC) specimens were subjected to axial compression tests and theoretical studies. The main analysis focused on the impact of the replacement rate of spontaneous combustion gangue (SCG), the type of CFRP confinement, and the number of CFRP layers on the axial compression performance of CFRP–PVC confined SAC (CFRP–PVC–SAC). The results show that CFRP–PVC confinement can effectively enhance the axial compressive capacity, axial deformation, and lateral deformation of the components. The increase in strength ranges from 1.68 to 3.48 times, while the increase in strain ranges from 5.21 to 11.98 times. The crack patterns and expansive behavior of the coal gangue concrete under confinement exhibit significant differences compared to ordinary concrete. In addition, based on the framework of the existing FRP-confined plain concrete model, a modified model is established to facilitate prediction of stress–strain relationships for short columns of CFRP–PVC–SAC, with the calculated results in good agreement with experimental values.https://doi.org/10.1038/s41598-024-51928-5 |
| spellingShingle | Jinyang Zhang Haiqing Liu Jinli Wang Ming Lei Zimu Chen Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns Scientific Reports |
| title | Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns |
| title_full | Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns |
| title_fullStr | Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns |
| title_full_unstemmed | Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns |
| title_short | Stress–strain characteristics of FRP–PVC confined spontaneous combustion gangue concrete columns |
| title_sort | stress strain characteristics of frp pvc confined spontaneous combustion gangue concrete columns |
| url | https://doi.org/10.1038/s41598-024-51928-5 |
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