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Mechanical property and thermal damage factor of limestone at high temperature

文献类型：期刊论文

作者Yang, Jian1,2; Fu, Li-Yun3; Zhang, Weiqiang4; Wang, Zhiwei2,5
刊名INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
出版日期2019-05-01
卷号117页码:11-19
关键词Limestone High temperature Thermal damage factor: elastic modulus Effective solid matrix
ISSN号1365-1609
DOI10.1016/j.ijrmms.2019.03.012
英文摘要Experiments with ten groups of limestone specimens (four samples per group) under ten specific temperatures, 25 degrees C, 100 degrees C, 200 degrees C, 300 degrees C, 400 degrees C, 500 degrees C, 600 degrees C, 700 degrees C, 800 degrees C, and 900 degrees C, show that the high-temperature effect on the elastic modulus of rocks conforms to thermoelastic responses with a quadratic temperature function. The thermal damage factor can be reduced, by ignoring the effect of Poisson's ratios and densities, to simply a ratio of the P-wave velocities before and after high-temperature treatments. Based on the collected experimental data, we correlate the P-wave velocities change rate with both the peak compressive strength and effective solid matrix. It demonstrates that the high-temperature effect on the thermal damage factor can be directly expressed as the rate of change in the peak compressive strength and effective solid matrix. All these properties (thermal damage factor calculated by the P-wave velocity, peak compressive strength, and effective solid matrix) share a similar exponential trend with increasing temperature. The rates of change in the elastic modulus, P-wave velocity, peak compressive strength, and effective solid matrix also exhibit a similar powerful trend with increasing temperature. This study provides insight into the detailed characteristics of thermal damage related to the mechanical property of limestones exposed to high temperature.
WOS关键词WAVE VELOCITIES ; STRAIN-RATE ; FRACTURE-TOUGHNESS ; GRANITE ; PRESSURE ; BEHAVIOR ; MICROSTRUCTURE ; POROSITY ; FAILURE ; ROCKS
资助项目National Major Project of China[2017ZX05008007] ; PetroluemChina Project[2016A-4801]
WOS研究方向Engineering ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000469934600002
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Major Project of China ; National Major Project of China ; PetroluemChina Project ; PetroluemChina Project ; National Major Project of China ; National Major Project of China ; PetroluemChina Project ; PetroluemChina Project ; National Major Project of China ; National Major Project of China ; PetroluemChina Project ; PetroluemChina Project ; National Major Project of China ; National Major Project of China ; PetroluemChina Project ; PetroluemChina Project
源URL[http://ir.iggcas.ac.cn/handle/132A11/92254]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Fu, Li-Yun
作者单位1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Guizhou, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.China Univ Petr East China, Sch Geosci, Qingdao 266580, Shandong, Peoples R China
4.China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, Jiangsu, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Jian,Fu, Li-Yun,Zhang, Weiqiang,et al. Mechanical property and thermal damage factor of limestone at high temperature[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2019,117:11-19.
APA Yang, Jian,Fu, Li-Yun,Zhang, Weiqiang,&Wang, Zhiwei.(2019).Mechanical property and thermal damage factor of limestone at high temperature.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,117,11-19.
MLA Yang, Jian,et al."Mechanical property and thermal damage factor of limestone at high temperature".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 117(2019):11-19.

入库方式： OAI收割

来源：地质与地球物理研究所

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