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Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Joint Authors
Fan, Shixing
Wen, Hu
Zhang, Duo
Yu, Zhijin
Zheng, Xuezhao
Laiwang, Bin
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-10
Country of Publication
Egypt
No. of Pages
13
Abstract EN
Spontaneous combustion of residual coal in a gob due to air leakage poses a major risk to mining safety.
Building an airtight wall is an effective measure for controlling air leakage.
A new type of inorganic solidified foam-filled material was developed and its physical and chemical properties were analyzed experimentally.
The compressive strength of this material increased with the amount of sulphoaluminate cement.
With an increasing water–cement ratio, the initial setting time was gradually extended while the final setting time firstly shortened and then extended.
The change in compressive strength had the opposite tendency.
Additionally, as the foam expansion ratio increased, the solidification time tended to decrease but the compressive strength remained approximately constant.
With an increase in foam production, the solidification time increased and the compressive strength decreased exponentially.
The results can be used to determine the optimal material ratios of inorganic solidified foam-filled material for coal mines, and filling technology for an airtight wall was designed.
A field application of the new material demonstrated that it seals crossheadings tightly, leaves no fissures, suppresses air leakage to the gob, and narrows the width of the spontaneous combustion and heat accumulation zone.
American Psychological Association (APA)
Wen, Hu& Zhang, Duo& Yu, Zhijin& Zheng, Xuezhao& Fan, Shixing& Laiwang, Bin. 2017. Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123854
Modern Language Association (MLA)
Wen, Hu…[et al.]. Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1123854
American Medical Association (AMA)
Wen, Hu& Zhang, Duo& Yu, Zhijin& Zheng, Xuezhao& Fan, Shixing& Laiwang, Bin. Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1123854
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123854