Mechanical Behavior of Cemented Sand Reinforced with Different Polymer Fibers
Joint Authors
Lv, Xiang-feng
Zhou, Hongyuan
Zhang, Shuo
Yang, Xiaohui
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-12
Country of Publication
Egypt
No. of Pages
10
Abstract EN
In this study, the specimens of cemented sand were prepared by reinforcing it separately with different contents (0.5%, 1.0%, 1.5%, and 2.0%) of three different polymer fibers (polyamide, polyester, and polypropylene) prepared as filaments of different lengths (6, 9, and 12 mm).
Then, these specimens were tested, and the improvement effects of the three fibers on the engineering-mechanical behavior of the cemented sand were analyzed and compared.
The different microstructures and chemical compositions of the fiber-reinforced cemented sand specimens were investigated using electron microscopy and X-ray diffraction.
Compression tests were performed to obtain the stress-strain curves of the specimens.
Comparative analysis was performed on the variation patterns of the mechanical parameters (such as unconfined compressive strength and peak strain) of the specimens.
Quantitative analysis was performed on the effect of fiber content and fiber filament length on the failure mode of the specimens.
It was shown that the inclusion of fibers led to a change from brittle failure to ductile failure.
The macro- and microexperimental results revealed that polypropylene fiber had the best improvement effect on the mechanical behavior of the cemented sand, followed by polyester fiber and polyamide fiber.
In particular, the cemented sand specimen reinforced with 1.5% polypropylene fiber prepared as 9 mm length filaments had a brittleness index of 0.0578, exhibited ductile failure (in contrast to the brittle failure of the nonreinforced cemented sand), and yielded the highest unconfined compressive strength and shear strength among the specimens.
American Psychological Association (APA)
Lv, Xiang-feng& Yang, Xiaohui& Zhou, Hongyuan& Zhang, Shuo. 2019. Mechanical Behavior of Cemented Sand Reinforced with Different Polymer Fibers. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1121078
Modern Language Association (MLA)
Lv, Xiang-feng…[et al.]. Mechanical Behavior of Cemented Sand Reinforced with Different Polymer Fibers. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1121078
American Medical Association (AMA)
Lv, Xiang-feng& Yang, Xiaohui& Zhou, Hongyuan& Zhang, Shuo. Mechanical Behavior of Cemented Sand Reinforced with Different Polymer Fibers. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1121078
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121078