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Real-time computerized tomography (CT) experiments on sandstone damage evolution during triaxial compression with chemical corrosion
Feng, XT; Chen, SL; Zhou, H
2004
Source PublicationINTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
ISSN1365-1609
Volume41Issue:2Pages:181-192
Abstract

The computerized tomography (CT) images and CT values for the process of compression, micro-cracking, and dilation up to the failure of sandstone specimens under different loading levels have been obtained using the real-time CT technique for triaxial loading of sandstone subjected to chemical corrosion. Clear CT images and CT value of the stages from compression of micro-cavities --> emergence of micro-cracks --> bifurcation --> development --> fracture --> collapse --> unloading can be observed. The CT value, equivalent to rock density at the CT scan layer, is the most important parameter describing the damage evolution process of rock. The paper also presents results of the corrosive influence of chemical solutions with different pH values and ionic concentrations on the sandstone strength. Stronger acidity (pH < 7) or causticity (pH > 7) has a stronger effect on the rock micro-fracturing evolution. The mechanism of damage evolution of sandstone is analyzed and a damage model based on the chemical corrosive influence and CT values is proposed. (C) 2003 Elsevier Ltd. All rights reserved.

DOI10.1016/S1365-1609(03)00059-5
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Mining & Mineral Processing
WOS SubjectEngineering, Geological ; Mining & Mineral Processing
WOS IDWOS:000188814800001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:100[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/3111
Collection岩土力学所知识全产出_期刊论文
AffiliationChinese Acad Med Sci, Key Lab Rock & Soil Mech, Inst Rock & Soil Mech; Northeastern Univ, Coll Resources & Civil Engn; Shenyang Univ Technol, Dept Civil Engn
Recommended Citation
GB/T 7714
Feng, XT,Chen, SL,Zhou, H. Real-time computerized tomography (CT) experiments on sandstone damage evolution during triaxial compression with chemical corrosion[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2004,41(2):181-192.
APA Feng, XT,Chen, SL,&Zhou, H.(2004).Real-time computerized tomography (CT) experiments on sandstone damage evolution during triaxial compression with chemical corrosion.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,41(2),181-192.
MLA Feng, XT,et al."Real-time computerized tomography (CT) experiments on sandstone damage evolution during triaxial compression with chemical corrosion".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 41.2(2004):181-192.
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