Article(id=1322608993093145473, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608929100649011, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190314, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1557676800000, receivedDateStr=2019-05-13, revisedDate=1562083200000, revisedDateStr=2019-07-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264156839, onlineDateStr=2026-10-29, pubDate=1579449600000, pubDateStr=2020-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264156839, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264156839, creator=13701087609, updateTime=1793264156839, updator=13701087609, issue=Issue{id=1322608929100649011, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='1', pageStart='1', pageEnd='146', issueExtLink='null', onlineDate='null', pubDate='1579449600000', pubDateStr='2020-01-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264141583, creator='13701087609', updateTime=1793276771816, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322661904204542961, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608929100649011, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322661904208737266, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608929100649011, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=86, endPage=93, ext={EN=ArticleExt(id=1322608994934444930, articleId=1322608993093145473, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effect of Lime on Properties of Filling Cementitious Material Prepared by Hemihydrate Phosphogypsum, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The gelling activity of hemihydrate phosphogypsum (HPG) is poor and its setting process is slow due to the effect of soluble impurities such as P2O5 and F-. Compared to cement clinker, the strength of HPG modified with lime as a hemihydrate phosphogypsum filling cementitious material (HCM) for goaf filling can be improved. The setting time and bleeding rate of HCM decrease rapidly and then increase slowly, and the compressive strength reverses with the increase of lime. Also, the concentration of total phosphorus and fluoride in the HCM leaching solution gradually decreases to below the standard values from the National Standard of Class I Solid Wastes. For the filling performance and environmental protection, the optimum mass fraction of lime in HCM is 2.0%. Lime can transform soluble P2O5 and F- into insoluble precipitates such as Ca3(PO4)2 and CaF2 to accelerate HPG hydration, increase the number of dihydrate gypsum crystal contact points, and further improve the HCM filling performance. The experimental pH value of HCM leaching solution is lower than the theoretical value, indicating that P2O5 in crystal can dissolve into soluble P2O5 in the process of HPG hydration, thus leading to a decreased alkalinity of backfill.

, authors=Guanzhao JIANG1, Aixiang WU1, Yiming WANG1, Jianqiu LI2, authorsList=Guanzhao JIANG, Aixiang WU, Yiming WANG, Jianqiu LI, authorCompany=null, correspAuthors=Aixiang WU, authorNote=

JIANG Guanzhao (1993-), male, Ph.D. candidate. E-mail:

, correspAuthorsNote=
WU Aixiang (1963-), male, Ph.D., Professor. E-mail:
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由于可溶性P2O5、F-等杂质的影响,半水磷石膏(HPG)胶凝活性较差,凝结速率慢。与水泥熟料相比,生石灰改性后的HPG强度性能显著提高,可以作为半水磷石膏充填胶凝材料(HCM)应用于采空区充填。室内试验表明,随着生石灰添加量的增加,HCM凝结时间和泌水率呈先快速下降后缓慢上升规律,抗压强度变化则相反,同时浸出液中总磷和氟化物浓度逐渐降至Ⅰ类固体废弃物标准允许值以下。综合考虑充填性能和环保性,HCM最佳生石灰添加量为2.0%(质量分数)。生石灰使可溶性P2O5、F-转化为Ca3(PO4)2和CaF2等难溶性沉淀,加速HPG水化,增加二水石膏晶体接触点数目,提高HCM充填性能。HCM浸出液pH实验值均低于理论值,说明HPG水化过程中共晶P2O5会溶为可溶性P2O5,降低充填体碱度。

, authors=姜关照1, 吴爱祥1, 王贻明1, 李剑秋2, authorsList=姜关照, 吴爱祥, 王贻明, 李剑秋, authorCompany=null, correspAuthors=吴爱祥, authorNote=

姜关照(1993—),男,博士研究生。

, correspAuthorsNote=
吴爱祥(1963—),男,博士,教授。
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姜关照(1993—),男,博士研究生。

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姜关照(1993—),男,博士研究生。

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生石灰对半水磷石膏充填胶凝材料性能影响
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姜关照 1 , 吴爱祥 1 , 王贻明 1 , 李剑秋 2
硅酸盐学报 | 2020,48(1): 86-93
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硅酸盐学报 | 2020 , 48 (1) : 86 -93
生石灰对半水磷石膏充填胶凝材料性能影响
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姜关照1 , 吴爱祥1 , 王贻明1, 李剑秋2
作者信息
  • 1.北京科技大学土木与资源工程学院,北京 100083
  • 2.贵州大学化学与化工学院,贵阳 550025
通讯作者:
吴爱祥(1963—),男,博士,教授。
作者简介:

姜关照(1993—),男,博士研究生。

Effect of Lime on Properties of Filling Cementitious Material Prepared by Hemihydrate Phosphogypsum
Guanzhao JIANG1 , Aixiang WU1 , Yiming WANG1, Jianqiu LI2
Affiliations
  • 1.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 2.School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
  • Corresponding Author:
    WU Aixiang (1963-), male, Ph.D., Professor. E-mail:

    JIANG Guanzhao (1993-), male, Ph.D. candidate. E-mail:

出版时间: 2020-01-20 doi: 10.14062/j.issn.0454-5648.20190314
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由于可溶性P2O5、F-等杂质的影响,半水磷石膏(HPG)胶凝活性较差,凝结速率慢。与水泥熟料相比,生石灰改性后的HPG强度性能显著提高,可以作为半水磷石膏充填胶凝材料(HCM)应用于采空区充填。室内试验表明,随着生石灰添加量的增加,HCM凝结时间和泌水率呈先快速下降后缓慢上升规律,抗压强度变化则相反,同时浸出液中总磷和氟化物浓度逐渐降至Ⅰ类固体废弃物标准允许值以下。综合考虑充填性能和环保性,HCM最佳生石灰添加量为2.0%(质量分数)。生石灰使可溶性P2O5、F-转化为Ca3(PO4)2和CaF2等难溶性沉淀,加速HPG水化,增加二水石膏晶体接触点数目,提高HCM充填性能。HCM浸出液pH实验值均低于理论值,说明HPG水化过程中共晶P2O5会溶为可溶性P2O5,降低充填体碱度。

生石灰  /  半水磷石膏  /  材料性能  /  改性机制  /  矿山充填

The gelling activity of hemihydrate phosphogypsum (HPG) is poor and its setting process is slow due to the effect of soluble impurities such as P2O5 and F-. Compared to cement clinker, the strength of HPG modified with lime as a hemihydrate phosphogypsum filling cementitious material (HCM) for goaf filling can be improved. The setting time and bleeding rate of HCM decrease rapidly and then increase slowly, and the compressive strength reverses with the increase of lime. Also, the concentration of total phosphorus and fluoride in the HCM leaching solution gradually decreases to below the standard values from the National Standard of Class I Solid Wastes. For the filling performance and environmental protection, the optimum mass fraction of lime in HCM is 2.0%. Lime can transform soluble P2O5 and F- into insoluble precipitates such as Ca3(PO4)2 and CaF2 to accelerate HPG hydration, increase the number of dihydrate gypsum crystal contact points, and further improve the HCM filling performance. The experimental pH value of HCM leaching solution is lower than the theoretical value, indicating that P2O5 in crystal can dissolve into soluble P2O5 in the process of HPG hydration, thus leading to a decreased alkalinity of backfill.

lime  /  hemihydrate phosphogypsum  /  material properties  /  modification mechanism  /  mining backfill
姜关照, 吴爱祥, 王贻明, 李剑秋. 生石灰对半水磷石膏充填胶凝材料性能影响. 硅酸盐学报, 2020 , 48 (1) : 86 -93 . DOI: 10.14062/j.issn.0454-5648.20190314
Guanzhao JIANG, Aixiang WU, Yiming WANG, Jianqiu LI. Effect of Lime on Properties of Filling Cementitious Material Prepared by Hemihydrate Phosphogypsum[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (1) : 86 -93 . DOI: 10.14062/j.issn.0454-5648.20190314
  • 国家重点研发计划项目(2017YFC0602903)
  • 国家自然科学基金项目(51674012)
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2020年第48卷第1期
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doi: 10.14062/j.issn.0454-5648.20190314
  • 接收时间:2019-05-13
  • 首发时间:2026-10-29
  • 出版时间:2020-01-20
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  • 收稿日期:2019-05-13
  • 修回日期:2019-07-03
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国家重点研发计划项目(2017YFC0602903)
国家自然科学基金项目(51674012)
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    1.北京科技大学土木与资源工程学院,北京 100083
    2.贵州大学化学与化工学院,贵阳 550025

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吴爱祥(1963—),男,博士,教授。
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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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