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An NMR-Based Experimental Study on the Pore Structure of the Hydration Process of Mine Filling Slurry
Joint Authors
Li, Jielin
Liu, Hanwen
Ai, Kaiming
Zhu, Longyin
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
To study the evolution of porosity in the process of filling slurry hydration, samples of tailing filling with different mixing ratios and different curing ages were prepared, and the pore structure was tested by low-field nuclear magnetic resonance (LF-NMR).
According to the T2 spectrum distribution curve and T2 spectrum area of the filling slurry hydration process, the porosity and the evolution of the pore distribution features of the filling samples were analysed.
The results showed that the higher the mass concentration of the filling slurry, the slower the hydration reaction, the smaller the average size of the pores, the higher the proportion occupied by harmful pores, and the lower the proportion occupied by multiharmful pores.
The smaller the cement-sand ratio of the slurry, the higher the proportion occupied by harmful pores and the larger the aperture of the pores.
The porosity of the filling slurry with the cement-sand ratio of 1 : 8 is the highest, and the hydration velocity of the filling slurry with the cement-sand ratio of 1 : 3 is the fastest.
American Psychological Association (APA)
Li, Jielin& Liu, Hanwen& Ai, Kaiming& Zhu, Longyin. 2018. An NMR-Based Experimental Study on the Pore Structure of the Hydration Process of Mine Filling Slurry. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116030
Modern Language Association (MLA)
Li, Jielin…[et al.]. An NMR-Based Experimental Study on the Pore Structure of the Hydration Process of Mine Filling Slurry. Advances in Civil Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1116030
American Medical Association (AMA)
Li, Jielin& Liu, Hanwen& Ai, Kaiming& Zhu, Longyin. An NMR-Based Experimental Study on the Pore Structure of the Hydration Process of Mine Filling Slurry. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116030
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116030