Experimental Study on Freeze-Thaw Effects on Creep Characteristics of Rubber Concrete
文献类型：期刊论文
| 作者 | Li, Qi5 ; Xu, Fei2,3,4; Zheng, Hemin1; Shi, Junhao5; Zhang, Jianyu3
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| 刊名 | ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2022-01-04 |
| 卷号 | 2022页码:14 |
| ISSN号 | 1687-8434 |
| DOI | 10.1155/2022/9182729 |
| 英文摘要 | Crumb Rubber Concrete (CRC) can exhibit high freeze-thaw resistance, but its long-term creep behavior under various freeze-thaw conditions remains unclear, which is essential for the safety of pavement engineering in the severe cold zone. In this study, the freeze-thaw effects on the creep behavior of CRC under different stress levels were systematically analyzed by testing the compressive strength, the uniaxial creep under different stress levels, and the dynamic elastic modulus. To simulate real conditions of the road environment in the cold area, the lowest temperature of -20 degrees C, six freeze-thaw cycles of 0, 30, 60, 90, 120, and 150, and seven different stress levels of 0.4, 0.5, 0.6, 0.7, 0.8, and 0.9 of the compressive strength were employed in this study. The test results showed that the mass loss rate was 6%-11.2% and the compressive strength decreased by 6.51%-47% after 30-150 freeze-thaw cycles. When the stress level reached its critical value, the relative dynamic elastic modulus decreased with the number of freeze-thaw cycles. After 150 freeze-thaw cycles, failure did not appear when the stress level was lower than 50%, above which the creep failure was determined by the stress level and the number of the freeze-thaw cycles. Meanwhile, it was found that the cracking and interfacial debonding between the matrix and the crumb rubber particle were the main reasons for the degradation of CRC creep performance. Finally, a Weibull distribution-based empirical creep damage model was established to predict the failure of CRC, which can enhance its application to related engineering. |
| 资助项目 | Institute of Rock and Soil Mechanics, Young Talent Top Project of Hebei Province[BJ2020055] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018014] ; China Postdoctoral Science Foundation[2019M663553] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000752908200003 |
| 出版者 | HINDAWI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34433]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Fei |
| 作者单位 | 1.China Railway Design Grp Co Ltd, Tianjin 300308, Peoples R China 2.Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Sichuan, Peoples R China 3.Shijiazhuang Tiedao Univ, Key Lab Large Struct Hlth Monitoring & Control, Shijiazhuang 050043, Hebei, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 5.Shijiazhuang Tiedao Univ, Sch Civil Engn, Shijiazhuang 050043, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qi,Xu, Fei,Zheng, Hemin,et al. Experimental Study on Freeze-Thaw Effects on Creep Characteristics of Rubber Concrete[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2022,2022:14. |
| APA | Li, Qi,Xu, Fei,Zheng, Hemin,Shi, Junhao,&Zhang, Jianyu.(2022).Experimental Study on Freeze-Thaw Effects on Creep Characteristics of Rubber Concrete.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2022,14. |
| MLA | Li, Qi,et al."Experimental Study on Freeze-Thaw Effects on Creep Characteristics of Rubber Concrete".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING 2022(2022):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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