Article(id=1322559944415629766, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1759161600000, receivedDateStr=2025-09-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252462723, onlineDateStr=2026-10-29, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252462723, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252462723, creator=13701087609, updateTime=1793252462723, updator=13701087609, issue=Issue{id=1322559901990240737, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='3', pageStart='1', pageEnd='330', issueExtLink='null', onlineDate='null', pubDate='1774368000000', pubDateStr='2026-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252452609, creator='13701087609', updateTime=1793252731500, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322561071810991099, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322561071810991100, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=93, endPage=100, ext={EN=ArticleExt(id=1322559945933967815, articleId=1322559944415629766, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Experimental Study on Lime-Optimized Phosphogypsum-Based Solid Waste Backfill, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The high content of phosphogypsum gel material has the disadvantages of weak gelling and low strength. Adding lime can improve the gelling and strength of phosphogypsum-based solid waste gel material. Phosphogypsum, steel slag and blast furnace slag were used as raw materials of cementitious materials, lime was used as activator, and tailings were used as aggregate to prepare backfill. The mechanical characteristics, pore characteristics and microstructure of backfill under different lime content were investigated. The fractal theory was introduced to explore the effect of lime on the pore characteristics of phosphogypsum-based solid waste cementitious backfill. The results show that a lime content of 2% increases the 7-day and 28-day strengths of the backfill by 133.33% and 95.83% respectively, which is the best lime content. Excessive lime generates excessive Ca(OH)₂ crystals, which causes volume expansion and structural damage of the backfill, thereby reducing its strength. Lime has a significant effect on the small pores in the backfill, especially on the fractal dimension of the pores within 20-200 nm. The strength of the backfill decreases linearly with porosity, decreases exponentially with pore contents in the ranges of 20-100 nm and >200 nm, decreases quadratically with pore content in the range of 100-200 nm, and increases exponentially with the fractal dimension.

, authors=Xiaosheng LIU¹, Weijun WANG¹, Tiejiang YANG², Changwei YUAN², authorsList=Xiaosheng LIU, Weijun WANG, Tiejiang YANG, Changwei YUAN, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322559946709914056, articleId=1322559944415629766, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=石灰优化磷石膏基固废充填体的试验研究, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=

高掺量磷石膏凝胶材料具有胶凝性弱、强度低等缺点，添加石灰可以提高磷石膏基固废凝胶材料的胶凝性和强度。以磷石膏、钢渣和高炉矿渣为胶凝材料原材料，石灰为激发剂，尾砂为骨料制备充填体，探究不同石灰掺量下充填体的力学特征、孔隙特征及微观结构，并引入分形理论来探究石灰对磷石膏基固废胶凝充填体孔隙特征的影响。结果表明：2%的石灰掺量可使充填体7 d和28 d强度分别提高133.33%和95.83%，为最佳石灰掺量，过量的石灰会生成过多Ca（OH）₂晶体，造成充填体发生体积膨胀和结构破坏，进而导致充填体强度降低；石灰对充填体内小孔径孔隙的影响显著，尤其对20~200 nm内孔隙的分形维数影响最为突出；充填体强度与孔隙度之间呈线性降低关系，与20~100 nm和>200 nm范围内的孔隙含量呈指数递减关系，与100~200 nm范围内的孔隙含量呈二次函数递减关系，与分形维数呈指数递增关系。

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柳小胜（1980—），男，湖南邵阳人，博士，正高级工程师，主要从事充填采矿技术研究工作。E-mail: 13681996@qq.com

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柳小胜（1980—），男，湖南邵阳人，博士，正高级工程师，主要从事充填采矿技术研究工作。E-mail: 13681996@qq.com

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