Article(id=1311360808601350953, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, articleNumber=null, orderNo=null, doi=10.13426/j.cnki.yky.2025.12.17, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1766937600000, receivedDateStr=2025-12-29, revisedDate=1770566400000, revisedDateStr=2026-02-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1790582380675, onlineDateStr=2026-09-28, pubDate=1779206400000, pubDateStr=2026-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790582380675, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790582380675, creator=13701087609, updateTime=1790582380675, updator=13701087609, issue=Issue{id=1311360779169919555, tenantId=1146029695717560320, journalId=1146123346816638986, year='2026', volume='45', issue='2', pageStart='1', pageEnd='156', issueExtLink='null', onlineDate='null', pubDate='1779206400000', pubDateStr='2026-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790582373659, creator='13701087609', updateTime=1790583908456, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311367216646418706, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311367216646418707, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1311360779169919555, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=134, endPage=142, ext={EN=ArticleExt(id=1311360810555896618, articleId=1311360808601350953, tenantId=1146029695717560320, journalId=1146123346816638986, language=EN, title=Uranium Tailings Multi-layer Covering System Based on Alkali-activated Solidification Materials, columnId=1175805042197152439, journalTitle=Uranium Mining and Metallurgy, columnName=Safety and Environment Protection, runingTitle=null, highlight=null, articleAbstract=

Uranium tailings produced by mining and smelting contain residual radioactivity, and the released radon gas is harmful to human. Covering control is an effective means to inhibit radon. In order to solve the problems of insufficient long-term stability and high cost of traditional covering materials, this study proposed multi-layer covering system based on alkali-activated solidification materials for uranium tailings, and carried out the trial in a tailings pond in the south of China. The selected sodium silicate (with a modulus of 2.0) as the alkali activator, mineral powder as the active material, and river sand as the fine aggregate, determined the optimal mix proportion as mineral powder : solid sodium silicate : uranium tailings (1.25-1.60 mm): river sand : water = 0.8 : 0.2 : 1.4 : 0.6 : 0.5 (mass ratio), with a compressive strength of 10.6 MPa for the solidified body at 28 days. With the alkali-activated solidified body of uranium tailings as the radon shielding layer, the test shows that the radon reduction efficiency of the 5 cm thick alkali-activated solidified body reaches 97.85 %. The multi-layer covering system constructed with the alkali-activated solidified body of tailings as the radon shielding layer consists of a protective layer, a vegetation layer, a radon shielding layer, a drainage layer and a barrier layer, which has functions such as corrosion resistance, seepage prevention, radon reduction, etc., and the radon excretion rate after covering is stable within 0.187-0.419 Bq/(m3·s), which meets the national standard. This system has excellent resistance to wind erosion, rainwater scouring and differential settlement and has good long-term stability. Economic analysis shows that the material cost of this system is only 75% of the same system at home and abroad, and the local of uranium tailings to achieve resource recycling has both environmental benefits and economic advantages, providing an efficient and feasible technical scheme for the decommissioning and treatment of uranium tailings pond.

, authors=Jie GAO, Lechang XU, Xin WEI, Lei ZHOU, authorsList=Jie GAO, Lechang XU, Xin WEI, Lei ZHOU, authorCompany=null, correspAuthors=Lechang XU, 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=1311360810891440939, articleId=1311360808601350953, tenantId=1146029695717560320, journalId=1146123346816638986, language=CN, title=基于碱激发固化材料的铀尾矿多层覆盖体系, columnId=1175805042343953080, journalTitle=铀矿冶, columnName=安全·环保, runingTitle=null, highlight=null, articleAbstract=

铀矿采冶过程产生的铀尾渣中残留有放射性物质,其持续释放的氡气对人体健康构成潜在危害,覆盖治理是有效抑氡手段之一。为解决传统覆盖材料长期稳定性不足、成本较高等问题,本研究提出一种基于碱激发固化材料的铀尾矿多层覆盖体系,并在南方某尾矿库开展了现场试验。研究筛选硅酸钠(模数2.0)为碱激发剂,矿粉为活性材料,河砂为细骨料,确定最优配比为矿粉:固体硅酸钠:铀尾渣:河砂:水=0.8:0.2:1.4:0.6:0.5(质量比);在该配比下,固化体28 d抗压强度达10.6 MPa。试验表明,以铀尾渣碱激发固化体为降氡屏蔽层构建的多层覆盖体系,由保护层、植被层、降氡屏蔽层、导排层和阻隔层构成,各层通过协同作用实现抗侵蚀、防渗与高效降氡等功能,5 cm厚的碱激发固化体降氡效果达97.85%,覆盖后氡析出率稳定在0.187~0.419 Bq/(m2·s),满足国家标准。该体系抗风蚀、雨水冲蚀及差异性沉降能力优异,长期稳定性良好。经济性分析结果显示,该体系的材料成本仅为国内外同类体系的75%。同时,通过就地利用铀尾渣实现了资源循环,兼具环境效益与经济优势,为铀尾矿库退役治理提供了一种高效可行的技术方案。

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徐乐昌
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基于碱激发固化材料的铀尾矿多层覆盖体系
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高洁 , 徐乐昌 , 魏鑫 , 周磊
铀矿冶 | 安全·环保 2026,45(2): 134-142
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铀矿冶 |安全·环保 2026 , 45 (2) : 134 -142
基于碱激发固化材料的铀尾矿多层覆盖体系
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高洁, 徐乐昌, 魏鑫, 周磊
作者信息
  • 核工业北京化工冶金研究院,北京 101149
通讯作者:
徐乐昌
Uranium Tailings Multi-layer Covering System Based on Alkali-activated Solidification Materials
Jie GAO, Lechang XU, Xin WEI, Lei ZHOU
Affiliations
  • Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
出版时间: 2026-05-20 doi: 10.13426/j.cnki.yky.2025.12.17
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铀矿采冶过程产生的铀尾渣中残留有放射性物质,其持续释放的氡气对人体健康构成潜在危害,覆盖治理是有效抑氡手段之一。为解决传统覆盖材料长期稳定性不足、成本较高等问题,本研究提出一种基于碱激发固化材料的铀尾矿多层覆盖体系,并在南方某尾矿库开展了现场试验。研究筛选硅酸钠(模数2.0)为碱激发剂,矿粉为活性材料,河砂为细骨料,确定最优配比为矿粉:固体硅酸钠:铀尾渣:河砂:水=0.8:0.2:1.4:0.6:0.5(质量比);在该配比下,固化体28 d抗压强度达10.6 MPa。试验表明,以铀尾渣碱激发固化体为降氡屏蔽层构建的多层覆盖体系,由保护层、植被层、降氡屏蔽层、导排层和阻隔层构成,各层通过协同作用实现抗侵蚀、防渗与高效降氡等功能,5 cm厚的碱激发固化体降氡效果达97.85%,覆盖后氡析出率稳定在0.187~0.419 Bq/(m2·s),满足国家标准。该体系抗风蚀、雨水冲蚀及差异性沉降能力优异,长期稳定性良好。经济性分析结果显示,该体系的材料成本仅为国内外同类体系的75%。同时,通过就地利用铀尾渣实现了资源循环,兼具环境效益与经济优势,为铀尾矿库退役治理提供了一种高效可行的技术方案。

铀尾矿  /  碱激发材料  /  放射性废物固化  /  氡析出率  /  覆盖体系  /  长期稳定性  /  资源循环利用

Uranium tailings produced by mining and smelting contain residual radioactivity, and the released radon gas is harmful to human. Covering control is an effective means to inhibit radon. In order to solve the problems of insufficient long-term stability and high cost of traditional covering materials, this study proposed multi-layer covering system based on alkali-activated solidification materials for uranium tailings, and carried out the trial in a tailings pond in the south of China. The selected sodium silicate (with a modulus of 2.0) as the alkali activator, mineral powder as the active material, and river sand as the fine aggregate, determined the optimal mix proportion as mineral powder : solid sodium silicate : uranium tailings (1.25-1.60 mm): river sand : water = 0.8 : 0.2 : 1.4 : 0.6 : 0.5 (mass ratio), with a compressive strength of 10.6 MPa for the solidified body at 28 days. With the alkali-activated solidified body of uranium tailings as the radon shielding layer, the test shows that the radon reduction efficiency of the 5 cm thick alkali-activated solidified body reaches 97.85 %. The multi-layer covering system constructed with the alkali-activated solidified body of tailings as the radon shielding layer consists of a protective layer, a vegetation layer, a radon shielding layer, a drainage layer and a barrier layer, which has functions such as corrosion resistance, seepage prevention, radon reduction, etc., and the radon excretion rate after covering is stable within 0.187-0.419 Bq/(m3·s), which meets the national standard. This system has excellent resistance to wind erosion, rainwater scouring and differential settlement and has good long-term stability. Economic analysis shows that the material cost of this system is only 75% of the same system at home and abroad, and the local of uranium tailings to achieve resource recycling has both environmental benefits and economic advantages, providing an efficient and feasible technical scheme for the decommissioning and treatment of uranium tailings pond.

uranium tailings  /  alkali activated materials (AAMs)  /  solidification of radioactive waste  /  radon exhalation rate  /  cover system  /  long-term stability  /  resource recycling utilization
高洁, 徐乐昌, 魏鑫, 周磊. 基于碱激发固化材料的铀尾矿多层覆盖体系. 铀矿冶, 2026 , 45 (2) : 134 -142 . DOI: 10.13426/j.cnki.yky.2025.12.17
Jie GAO, Lechang XU, Xin WEI, Lei ZHOU. Uranium Tailings Multi-layer Covering System Based on Alkali-activated Solidification Materials[J]. Uranium Mining and Metallurgy, 2026 , 45 (2) : 134 -142 . DOI: 10.13426/j.cnki.yky.2025.12.17

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doi: 10.13426/j.cnki.yky.2025.12.17
  • 接收时间:2025-12-29
  • 首发时间:2026-09-28
  • 出版时间:2026-05-20
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  • 收稿日期:2025-12-29
  • 修回日期:2026-02-09
基金
作者信息
    核工业北京化工冶金研究院,北京 101149

通讯作者:

徐乐昌
参考文献
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https://castjournals.cast.org.cn/joweb/yky/CN/10.13426/j.cnki.yky.2025.12.17
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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