Article(id=1322164622552056765, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, 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=1742400000000, receivedDateStr=2025-03-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793158210647, onlineDateStr=2026-10-28, pubDate=1764000000000, pubDateStr=2025-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793158210647, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793158210647, creator=13701087609, updateTime=1793158210647, updator=13701087609, issue=Issue{id=1322164546295410919, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='11', pageStart='1', pageEnd='284', issueExtLink='null', onlineDate='null', pubDate='1764000000000', pubDateStr='2025-11-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793158192465, creator='13701087609', updateTime=1793158905697, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322167537857573862, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322167537861768167, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322164546295410919, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=105, endPage=112, ext={EN=ArticleExt(id=1322164622757577662, articleId=1322164622552056765, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Experimental Study on Fly Ash-Based Foam Concrete and Its Industrial Application in Mine Filling, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to solve the filling demand of upward drift filling mining method in the broken rock area of a gold mine in Luoyang, fly ash-based foam concrete was used to fill the goaf. The slump test and uniaxial compression test were carried out to explore the influence of fly ash content on the compressive strength of filling body, and the cementitious mechanism of fly ash based foam concrete was analyzed. The results show that the foam concrete can control its flow state through the foaming rate (wet bulk density), and the slump values of the slurry with different cement contents are controlled between 24 cm and 27 cm. At this time, the slurry has a good flow performance and no bleeding phenomenon. Whether fly ash is added or not, the strength of foam concrete specimen can meet the strength requirements of upward drift filling mining method, but the costs of foam concrete materials can be reduced by 46.7% by adding fly ash, and fly ash-based foam concrete has a good application prospect. The fly ash optimizes the pore structure by generating C-S-H gel and ettringite to improve the later strength of the filling body. In the industrial test of foam concrete, the total volume of goaf is 525 m3, the costs of filling materials are about 55,000 yuan, and the comprehensive filling cost is 42 yuan/t. The filling slurry has good leveling and no bleeding, and the strength of filling body is consistent with the indoor test values. The industrial test of filling has achieved the expected effect and solved the urgent problem of mine filling production.
, authors=Xingchang ZHONG, authorsList=Xingchang ZHONG, 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=1322164626083660747, articleId=1322164622552056765, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=粉煤灰基泡沫混凝土试验研究及矿井充填工业应用, columnId=1226462294490657775, journalTitle=矿业研究与开发, columnName=采矿与矿山充填, runingTitle=null, highlight=null, articleAbstract=
为解决洛阳某金矿矿岩破碎区域上向进路充填采矿法的充填需求,采用粉煤灰基泡沫混凝土充填采空区。开展了坍落度试验和单轴压缩试验,探究粉煤灰掺量对充填体抗压强度的影响,并分析了粉煤灰基泡沫混凝土的胶凝机理。结果表明:泡沫混凝土可以通过发泡率(湿容重)控制其流动状态,不同水泥掺量的料浆坍落度值均控制在24~27 cm之间,此时料浆流动性良好,且无泌水现象;无论是否添加粉煤灰,泡沫混凝土试块强度均能满足上向进路充填采矿法的强度要求,但添加粉煤灰可使泡沫混凝土材料成本降低46.7%,粉煤灰基泡沫混凝土具备较好的应用前景;粉煤灰通过生成C-S-H凝胶和钙矾石优化孔结构,提高了充填体后期强度。泡沫混凝土现场工业试验累计充填空区体积为525 m3,充填材料成本约5.5万元,综合充填成本42元/t,充填料浆流平性好、无泌水,充填体强度与室内试验值一致,充填工业试验达到了预期效果,解决了矿山充填生产的燃眉之急。
, authors=钟兴昌, authorsList=钟兴昌, authorCompany=null, correspAuthors=null, authorNote=
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钟兴昌(1988—),男,福建龙岩人,工程师,主要从事矿山采矿生产技术管理工作。E-mail:364907590@qq.com
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钟兴昌(1988—),男,福建龙岩人,工程师,主要从事矿山采矿生产技术管理工作。E-mail:364907590@qq.com
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The relationship between cement content and compressive strength of foam concrete, figureFileSmall=ChBVWhYig+q/C3RVqqua7g==, figureFileBig=JY7N03oPehi90PmSMxr9RQ==, tableContent=null), ArticleFig(id=1322164627652330462, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图1, caption=
水泥掺量与泡沫混凝土抗压强度的关系, figureFileSmall=ChBVWhYig+q/C3RVqqua7g==, figureFileBig=JY7N03oPehi90PmSMxr9RQ==, tableContent=null), ArticleFig(id=1322164627857851359, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Fig.2, caption=
Relationship curves between fly ash content and compressive strength of foam concrete filling body, figureFileSmall=xRYKooib3sxsvY1BT6UVYQ==, figureFileBig=+zDYTQR7xA5/U/8WSe429g==, tableContent=null), ArticleFig(id=1322164627958514656, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图2, caption=
粉煤灰掺量与泡沫混凝土充填体抗压强度的关系曲线, figureFileSmall=xRYKooib3sxsvY1BT6UVYQ==, figureFileBig=+zDYTQR7xA5/U/8WSe429g==, tableContent=null), ArticleFig(id=1322164628050789345, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Fig.3, caption=
XRD patterns of each sample, figureFileSmall=T7/6Ebor85ZS+sZLY+Wvjg==, figureFileBig=8/o+14YSwtxBM0zJGdgGvw==, tableContent=null), ArticleFig(id=1322164628126286818, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图3, caption=
各试样的XRD图谱, figureFileSmall=T7/6Ebor85ZS+sZLY+Wvjg==, figureFileBig=8/o+14YSwtxBM0zJGdgGvw==, tableContent=null), ArticleFig(id=1322164628193395683, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Fig.4, caption=
The microstructure of each sample (1 mm), figureFileSmall=JlpGjTaz7WC4T3AbB0EC+w==, figureFileBig=EkzUl9qEP+PWY8t7C4rWFg==, tableContent=null), ArticleFig(id=1322164628289864676, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图4, caption=
各试样微观形貌(1 mm), figureFileSmall=JlpGjTaz7WC4T3AbB0EC+w==, figureFileBig=EkzUl9qEP+PWY8t7C4rWFg==, tableContent=null), ArticleFig(id=1322164628361167845, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Fig.5, caption=
The microstructure of each sample (10 μm), figureFileSmall=Zf2f70plTeFNUMJPh8iNwA==, figureFileBig=6jpUMDZHLIZgGExrkCgOyA==, tableContent=null), ArticleFig(id=1322164628445053926, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图5, caption=
各试样微观形貌(10 μm), figureFileSmall=Zf2f70plTeFNUMJPh8iNwA==, figureFileBig=6jpUMDZHLIZgGExrkCgOyA==, tableContent=null), ArticleFig(id=1322164630147941351, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Fig.6, caption=
The filling process of foam concrete in a gold mine, figureFileSmall=ph/rkctRqrABbxFoTWl/Ug==, figureFileBig=o1lTa3u+ID6M+cE8Jmgzsw==, tableContent=null), ArticleFig(id=1322164630244410344, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=图6, caption=
某金矿泡沫混凝土充填工艺流程, figureFileSmall=ph/rkctRqrABbxFoTWl/Ug==, figureFileBig=o1lTa3u+ID6M+cE8Jmgzsw==, tableContent=null), ArticleFig(id=1322164630391210985, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Table 1, caption=
Experimental results of slurry slump
, figureFileSmall=null, figureFileBig=null, tableContent=
| 水泥掺量/(kg/m3) | 发泡率/% | 料浆湿容重/(kg/m3) | 坍落度/cm |
|---|
| 300 | 75 | 488 | 24.2 |
| 400 | 67 | 633 | 24.4 |
| 500 | 58 | 779 | 24.9 |
| 600 | 50 | 925 | 25.5 |
| 700 | 42 | 1 071 | 26.7 |
), ArticleFig(id=1322164630521234410, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=表1, caption=
料浆坍落度试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 水泥掺量/(kg/m3) | 发泡率/% | 料浆湿容重/(kg/m3) | 坍落度/cm |
|---|
| 300 | 75 | 488 | 24.2 |
| 400 | 67 | 633 | 24.4 |
| 500 | 58 | 779 | 24.9 |
| 600 | 50 | 925 | 25.5 |
| 700 | 42 | 1 071 | 26.7 |
), ArticleFig(id=1322164630609314795, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Table 2, caption=
Uniaxial compressive strength of foam concrete with different cement contents
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 水泥掺量/(kg/m3) | 料浆湿容重/(kg/m3) | 单轴抗压强度/MPa | 充填成本/(元/m3) |
|---|
| 1 d | 3 d | 7 d | 28 d |
|---|
| 1 | 300 | 487.50 | 0.00 | 0.05 | 0.06 | 0.09 | 132 |
| 2 | 400 | 633.33 | 0.08 | 0.22 | 0.38 | 0.61 | 176 |
| 3 | 500 | 779.17 | 0.34 | 1.05 | 1.40 | 2.02 | 220 |
| 4 | 600 | 925.00 | 1.18 | 2.5 | 3.07 | 4.24 | 264 |
| 5 | 700 | 1 070.83 | 1.41 | 3.22 | 3.92 | 5.60 | 308 |
), ArticleFig(id=1322164630693200876, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=表2, caption=
不同水泥掺量的泡沫混凝土单轴抗压强度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 水泥掺量/(kg/m3) | 料浆湿容重/(kg/m3) | 单轴抗压强度/MPa | 充填成本/(元/m3) |
|---|
| 1 d | 3 d | 7 d | 28 d |
|---|
| 1 | 300 | 487.50 | 0.00 | 0.05 | 0.06 | 0.09 | 132 |
| 2 | 400 | 633.33 | 0.08 | 0.22 | 0.38 | 0.61 | 176 |
| 3 | 500 | 779.17 | 0.34 | 1.05 | 1.40 | 2.02 | 220 |
| 4 | 600 | 925.00 | 1.18 | 2.5 | 3.07 | 4.24 | 264 |
| 5 | 700 | 1 070.83 | 1.41 | 3.22 | 3.92 | 5.60 | 308 |
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Uniaxial compressive strength of foam concrete under conditions of different cement and fly ash contents
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| 序号 | 水泥掺量/(kg/m3) | 粉煤灰掺量/(kg/m3) | 单轴抗压强度/MPa | 充填成本/(元/m3) |
|---|
| 1 d | 3 d | 7 d | 28 d |
| 1 | 400 | 200 | 1.18 | 2.39 | 3.04 | 7.06 | 196.0 |
| 2 | 300 | 300 | 0.39 | 1.23 | 2.36 | 4.14 | 161.6 |
| 3 | 240 | 360 | 0.29 | 0.90 | 1.55 | 3.58 | 141.6 |
| 4 | 180 | 420 | 0.20 | 0.61 | 1.06 | 1.88 | 121.2 |
| 5 | 120 | 480 | 0.07 | 0.37 | 0.80 | 1.38 | 100.8 |
), ArticleFig(id=1322164630877750254, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=表3, caption=
不同水泥和粉煤灰掺量条件下泡沫混凝土的单轴抗压强度
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| 序号 | 水泥掺量/(kg/m3) | 粉煤灰掺量/(kg/m3) | 单轴抗压强度/MPa | 充填成本/(元/m3) |
|---|
| 1 d | 3 d | 7 d | 28 d |
| 1 | 400 | 200 | 1.18 | 2.39 | 3.04 | 7.06 | 196.0 |
| 2 | 300 | 300 | 0.39 | 1.23 | 2.36 | 4.14 | 161.6 |
| 3 | 240 | 360 | 0.29 | 0.90 | 1.55 | 3.58 | 141.6 |
| 4 | 180 | 420 | 0.20 | 0.61 | 1.06 | 1.88 | 121.2 |
| 5 | 120 | 480 | 0.07 | 0.37 | 0.80 | 1.38 | 100.8 |
), ArticleFig(id=1322164630990996463, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Table 4, caption=
Material costs of pure cement filling under different strength requirements of filling body
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体强度要求/MPa | 水泥掺量/(kg/m3) | 材料成本/(元/m3) | 占比/% | 综合材料成本/(元/m3) |
|---|
| 4 | 600 | 264 | 6.25 | 16.5 |
| 0.8~1.0 | 500 | 220 | 30.00 | 66.0 |
| 0.2~0.3 | 400 | 176 | 63.75 | 112.2 |
), ArticleFig(id=1322164631066493936, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=表4, caption=
不同充填体强度要求下纯水泥充填材料的成本
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体强度要求/MPa | 水泥掺量/(kg/m3) | 材料成本/(元/m3) | 占比/% | 综合材料成本/(元/m3) |
|---|
| 4 | 600 | 264 | 6.25 | 16.5 |
| 0.8~1.0 | 500 | 220 | 30.00 | 66.0 |
| 0.2~0.3 | 400 | 176 | 63.75 | 112.2 |
), ArticleFig(id=1322164631129408497, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=EN, label=Table 5, caption=
Material costs of filling material containing cement and fly ash under different strength requirements of filling body
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体强度要求/MPa | 水泥掺量/(kg/m3) | 粉煤灰掺量/(kg/m2) | 材料成本/(元/m3) | 占比/% | 综合材料成本/(元/m3) |
|---|
| 4 | 300 | 300 | 161.6 | 6.25 | 10.1 |
| 0.8~1.0 | 240 | 360 | 141.6 | 30.00 | 42.5 |
| 0.2~0.3 | 60 | 540 | 80.4 | 63.75 | 51.2 |
), ArticleFig(id=1322164631200711666, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322164622552056765, language=CN, label=表5, caption=
不同充填体强度要求下水泥+粉煤灰充填材料的成本
, figureFileSmall=null, figureFileBig=null, tableContent=
| 充填体强度要求/MPa | 水泥掺量/(kg/m3) | 粉煤灰掺量/(kg/m2) | 材料成本/(元/m3) | 占比/% | 综合材料成本/(元/m3) |
|---|
| 4 | 300 | 300 | 161.6 | 6.25 | 10.1 |
| 0.8~1.0 | 240 | 360 | 141.6 | 30.00 | 42.5 |
| 0.2~0.3 | 60 | 540 | 80.4 | 63.75 | 51.2 |
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