Experimental Investigation on Mechanical Properties of Cemented Paste Backfill under Different Gradations of Aggregate Particles and Types and Contents of Cementing Materials
Joint Authors
Ni, Xiaoyan
Han, Guansheng
Wu, Jiangyu
Feng, Meimei
Chen, Zhanqing
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-15
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Obtaining the optimal gradation of aggregate particles is beneficial for improving the strength of cemented paste backfill (CPB).
Consequently, the uniaxial compression tests with acoustic emission (AE) monitoring were performed on CPB, for which the aggregate particles satisfied the Talbot grading theory.
The effects of the Talbot indices of aggregate particles and types and contents of cementing materials on the mechanical properties of CPB were analyzed.
The AE characteristics and stress-strain behaviors of CPB were discussed.
The results show that the specific Talbot index reflected the optimal strength and deformation properties of CPB is 0.45, and the maximum UCS is 7.6 MPa.
The mechanical properties of CPB also can be optimized by changing the type of cementing material and increasing the content of cementing material.
The effects of the Talbot indices of aggregate particles and types and contents of cementing materials on the crack damages reflected by the AE signals of CPB are mainly observed in the oa stage and ab stage during the loading process.
American Psychological Association (APA)
Wu, Jiangyu& Feng, Meimei& Han, Guansheng& Ni, Xiaoyan& Chen, Zhanqing. 2019. Experimental Investigation on Mechanical Properties of Cemented Paste Backfill under Different Gradations of Aggregate Particles and Types and Contents of Cementing Materials. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1121354
Modern Language Association (MLA)
Wu, Jiangyu…[et al.]. Experimental Investigation on Mechanical Properties of Cemented Paste Backfill under Different Gradations of Aggregate Particles and Types and Contents of Cementing Materials. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1121354
American Medical Association (AMA)
Wu, Jiangyu& Feng, Meimei& Han, Guansheng& Ni, Xiaoyan& Chen, Zhanqing. Experimental Investigation on Mechanical Properties of Cemented Paste Backfill under Different Gradations of Aggregate Particles and Types and Contents of Cementing Materials. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1121354
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121354
