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Influence of Chemical Corrosion on Pore Structure and Mechanical Properties of Sandstone
Joint Authors
Li, Jielin
Gao, Ru-gao
Lin, Yun
Zhou, Keping
Zhang, Jian
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-15
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Chemical corrosion plays a significant role in affecting the properties of rock materials.
To understand the effects of chemical corrosion on the pore structure and mechanical properties of sandstones, porosity, T2 spectrum distribution, and NMR images of sandstone specimens were measured after every 10 days of immersion in chemical solutions using the nuclear magnetic resonance (NMR) technique.
Static uniaxial compressive tests and dynamic compressive tests were conducted using a conventional servo-controlled testing machine and a split Hopkinson pressure bar (SHPB) system for specimens treated with chemical corrosion.
The test results showed that after being treated with chemical corrosion, the porosity of a specimen increased, the T2 spectrum distribution would successively shift towards the right, and the distribution of pores tended to become more irregular.
Additionally, all of the compressive strength and elastic modulus of sandstone treated with chemical corrosion under static and dynamic loads decreased, and the peak strain increased.
The effect order of a chemical solution on the pore structure and mechanical properties of sandstone was H2SO4>NaOH>distilled water, which would be related to the different mechanisms of a water-rock reaction.
According to the experimental results, the correlations between the mechanical properties and porosity were established.
The results can serve as a reference for research in related fields.
American Psychological Association (APA)
Lin, Yun& Zhou, Keping& Gao, Ru-gao& Li, Jielin& Zhang, Jian. 2019. Influence of Chemical Corrosion on Pore Structure and Mechanical Properties of Sandstone. Geofluids،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1154256
Modern Language Association (MLA)
Lin, Yun…[et al.]. Influence of Chemical Corrosion on Pore Structure and Mechanical Properties of Sandstone. Geofluids No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1154256
American Medical Association (AMA)
Lin, Yun& Zhou, Keping& Gao, Ru-gao& Li, Jielin& Zhang, Jian. Influence of Chemical Corrosion on Pore Structure and Mechanical Properties of Sandstone. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1154256
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1154256