Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis
Cemented lithium mica tailings backfill (CLMTB) faces dynamic loads from mining operations, affecting its stability. This study investigates the use of alkaline rice straw fibers (ARSF) to enhance CLMTB's dynamic properties. Dynamic impact tests were conducted on CLMTB specimens with varying AR...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Developments in the Built Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666165924002448 |
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| author | Daopei Zhu Nanhui Huang Quanmao Xiao Zhangli Wang |
| author_facet | Daopei Zhu Nanhui Huang Quanmao Xiao Zhangli Wang |
| author_sort | Daopei Zhu |
| collection | DOAJ |
| description | Cemented lithium mica tailings backfill (CLMTB) faces dynamic loads from mining operations, affecting its stability. This study investigates the use of alkaline rice straw fibers (ARSF) to enhance CLMTB's dynamic properties. Dynamic impact tests were conducted on CLMTB specimens with varying ARSF contents, revealing that dynamic compressive strength (DCS) increased with ARSF up to 0.45% before decreasing. DCS improved with rising strain rates. The research includes analyses of stress-strain behavior, failure patterns, and energy dissipation during impacts, with scanning electron microscopy revealing the microstructural effects of ARSF on CLMTB. The findings suggest that ARSF effectively mitigates the damaging impacts of loads, significantly reducing crack development in CLMTB. |
| format | Article |
| id | doaj-art-978b71497a3e4e23a8c6f5e3287ecc29 |
| institution | Kabale University |
| issn | 2666-1659 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Developments in the Built Environment |
| spelling | doaj-art-978b71497a3e4e23a8c6f5e3287ecc292024-12-17T05:00:59ZengElsevierDevelopments in the Built Environment2666-16592024-12-0120100563Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysisDaopei Zhu0Nanhui Huang1Quanmao Xiao2Zhangli Wang3School of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, ChinaSchool of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, ChinaSchool of Civil and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, ChinaSchool of Civil Engineering, Lanzhou Technology and Business College, Lanzhou, 730101, China; Corresponding author.Cemented lithium mica tailings backfill (CLMTB) faces dynamic loads from mining operations, affecting its stability. This study investigates the use of alkaline rice straw fibers (ARSF) to enhance CLMTB's dynamic properties. Dynamic impact tests were conducted on CLMTB specimens with varying ARSF contents, revealing that dynamic compressive strength (DCS) increased with ARSF up to 0.45% before decreasing. DCS improved with rising strain rates. The research includes analyses of stress-strain behavior, failure patterns, and energy dissipation during impacts, with scanning electron microscopy revealing the microstructural effects of ARSF on CLMTB. The findings suggest that ARSF effectively mitigates the damaging impacts of loads, significantly reducing crack development in CLMTB.http://www.sciencedirect.com/science/article/pii/S2666165924002448Alkaline rice straw fiberDynamic impactCemented tailings backfillDynamic compressive strengthStrain rate |
| spellingShingle | Daopei Zhu Nanhui Huang Quanmao Xiao Zhangli Wang Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis Developments in the Built Environment Alkaline rice straw fiber Dynamic impact Cemented tailings backfill Dynamic compressive strength Strain rate |
| title | Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis |
| title_full | Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis |
| title_fullStr | Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis |
| title_full_unstemmed | Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis |
| title_short | Enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers: Experimental investigation and microscopic analysis |
| title_sort | enhancing dynamic mechanical properties of cemented lithium mica tailings backfill with alkaline rice straw fibers experimental investigation and microscopic analysis |
| topic | Alkaline rice straw fiber Dynamic impact Cemented tailings backfill Dynamic compressive strength Strain rate |
| url | http://www.sciencedirect.com/science/article/pii/S2666165924002448 |
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