Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage
The stress-strain constitutive relationship is an important research content of concrete materials.To reveal the mechanical damage law of recycled aggregate concrete under the effect of freeze-thaw cycles,this study builds a statistical model of mesoscopic damage to concrete on the basis of Weibull...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2023-01-01
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| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.008 |
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| author | FENG Hongchun XU Chengjian YUE Kedong YANG Tong |
| author_facet | FENG Hongchun XU Chengjian YUE Kedong YANG Tong |
| author_sort | FENG Hongchun |
| collection | DOAJ |
| description | The stress-strain constitutive relationship is an important research content of concrete materials.To reveal the mechanical damage law of recycled aggregate concrete under the effect of freeze-thaw cycles,this study builds a statistical model of mesoscopic damage to concrete on the basis of Weibull strength theory and compression experiment results of concrete.The results show that the damage to concrete under the uniaxial load is more significant under the action of the freeze-thaw cycle.As the number of freeze-thaw cycles increases from 0 to 120,the compressive strength and elastic modulus decrease exponentially,and the failure strain shows an upward trend.The Weibull strength theory is employed to construct the constitutive model of concrete damage considering the influences of freeze-thaw cycles,and by fitting,the shape parameter m and the scale parameter ε<sub>0</sub> are solved.In addition,the number of freeze-thaw cycles T is introduced to this model.The comparison of the measured stress-strain curve with the fitted results of the model verifies the rationality of the theoretical model. |
| format | Article |
| id | doaj-art-e6881faa27d640fe91966d13a179209a |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-e6881faa27d640fe91966d13a179209a2025-01-15T02:22:40ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447639655Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw DamageFENG HongchunXU ChengjianYUE KedongYANG TongThe stress-strain constitutive relationship is an important research content of concrete materials.To reveal the mechanical damage law of recycled aggregate concrete under the effect of freeze-thaw cycles,this study builds a statistical model of mesoscopic damage to concrete on the basis of Weibull strength theory and compression experiment results of concrete.The results show that the damage to concrete under the uniaxial load is more significant under the action of the freeze-thaw cycle.As the number of freeze-thaw cycles increases from 0 to 120,the compressive strength and elastic modulus decrease exponentially,and the failure strain shows an upward trend.The Weibull strength theory is employed to construct the constitutive model of concrete damage considering the influences of freeze-thaw cycles,and by fitting,the shape parameter m and the scale parameter ε<sub>0</sub> are solved.In addition,the number of freeze-thaw cycles T is introduced to this model.The comparison of the measured stress-strain curve with the fitted results of the model verifies the rationality of the theoretical model.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.008recycled aggregate concretefreeze-thaw cyclemesoscopic damageconstitutive model |
| spellingShingle | FENG Hongchun XU Chengjian YUE Kedong YANG Tong Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage Renmin Zhujiang recycled aggregate concrete freeze-thaw cycle mesoscopic damage constitutive model |
| title | Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage |
| title_full | Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage |
| title_fullStr | Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage |
| title_full_unstemmed | Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage |
| title_short | Constitutive Model of Recycled Aggregate Concrete for Channels Affected by Freeze-Thaw Damage |
| title_sort | constitutive model of recycled aggregate concrete for channels affected by freeze thaw damage |
| topic | recycled aggregate concrete freeze-thaw cycle mesoscopic damage constitutive model |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.008 |
| work_keys_str_mv | AT fenghongchun constitutivemodelofrecycledaggregateconcreteforchannelsaffectedbyfreezethawdamage AT xuchengjian constitutivemodelofrecycledaggregateconcreteforchannelsaffectedbyfreezethawdamage AT yuekedong constitutivemodelofrecycledaggregateconcreteforchannelsaffectedbyfreezethawdamage AT yangtong constitutivemodelofrecycledaggregateconcreteforchannelsaffectedbyfreezethawdamage |