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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Main Authors: Daopei Zhu, Nanhui Huang, Quanmao Xiao, Zhangli Wang
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Developments in the Built Environment
Subjects:
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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AT nanhuihuang enhancingdynamicmechanicalpropertiesofcementedlithiummicatailingsbackfillwithalkalinericestrawfibersexperimentalinvestigationandmicroscopicanalysis
AT quanmaoxiao enhancingdynamicmechanicalpropertiesofcementedlithiummicatailingsbackfillwithalkalinericestrawfibersexperimentalinvestigationandmicroscopicanalysis
AT zhangliwang enhancingdynamicmechanicalpropertiesofcementedlithiummicatailingsbackfillwithalkalinericestrawfibersexperimentalinvestigationandmicroscopicanalysis