Article(id=1322612278139146621, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190504, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1563120000000, receivedDateStr=2019-07-15, revisedDate=1568908800000, revisedDateStr=2019-09-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264940056, onlineDateStr=2026-10-29, pubDate=1589904000000, pubDateStr=2020-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264940056, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264940056, creator=13701087609, updateTime=1793264940056, updator=13701087609, issue=Issue{id=1322612265061306700, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='5', pageStart='615', pageEnd='786', issueExtLink='null', onlineDate='null', pubDate='1589904000000', pubDateStr='2020-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264936938, creator='13701087609', updateTime=1793276961694, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322662700602208333, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322662700602208334, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=665, endPage=674, ext={EN=ArticleExt(id=1322612278646657406, articleId=1322612278139146621, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Hydration of Reactive Powder Concrete Matrix under Long-Term Hydrothermal Condition, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

A reactive powder concrete (RPC) matrix with a low water to cement ratio of 0.21 was prepared. The hydration of the RPC matrixes under long-term hydrothermal condition was investigated. The insoluble matter of the RPC matrix was examined to characterize its hydration level. The structural property of the RPC matrix was characterized using the Vickers hardness meter. The phase composition and morphology of the RPC matrix were characterized using X-ray powder diffraction and scanning electron microscopy/energy dispersive spectrometry. Under the hydrothermal condition, the hydration level of the RPC matrix increases during the autoclaved curing for 0-96 h, and the Vickers hardness of the RPC matrix also increases. The hydration rate of the RPC matrix is rather low, and the hydration of the clinker in the matrix becomes stopped during the long-term autoclaved curing (i.e., 168-312 h). In addition, there are a few crystalline hydrates in the RPC matrix cured for long-term, and the flocculent calcium silicate hydrates gel cannot be transferred to their crystalline forms due to the lack of space for the crystallization. The RPC matrix with a low water to cement ratio has a great stability under the long-term hydrothermal condition and a promising potential to be used as nuclear waste keeping materials.

, authors=Qinyi ZHAO1, Bing HE1, Xiaoyu CUI2, Jianqiao HOU1, Chong CUI1, Hailong MA3, authorsList=Qinyi ZHAO, Bing HE, Xiaoyu CUI, Jianqiao HOU, Chong CUI, Hailong MA, authorCompany=null, correspAuthors=Chong CUI, authorNote=

ZHAO Qinyi (1992-), male, Doctoral candidate. E-mail:

, correspAuthorsNote=
CUI Chong (1957-), male, Master, Professor. E-mail:
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以0.21的水灰比成型活性粉末混凝土(RPC)基体,研究低水灰比RPC基体水化相在高温蒸压养护条件下的长期水化规律。采用酸不溶物含量表征基体的水化程度,采用显微维氏硬度表征RPC基体在养护过程中的结构性能,并通过X射线粉末衍射与扫描电子显微镜/能量色散谱分析RPC基体的物相与形貌变化。结果表明:高温蒸压养护过程中,RPC基体水化程度在0~96 h的养护期内快速提升,硬度随养护时间增加提升明显;长期养护时(168~312 h),基体的水化速率缓慢,基体内水泥熟料的水化趋于停滞。长期高温蒸压养护过程中,低水灰比RPC基体中晶态水化产物极少,由于缺乏晶态转化的空间,基体中的絮状水化硅酸钙凝胶无明显晶化现象,在长期高温水热条件下具有良好的稳定性,在核废料存储材料领域具有应用前景。

, authors=赵秦仪1, 何兵1, 崔晓昱2, 侯剑桥1, 崔崇1, 马海龙3, authorsList=赵秦仪, 何兵, 崔晓昱, 侯剑桥, 崔崇, 马海龙, authorCompany=null, correspAuthors=崔崇, authorNote=

赵秦仪(1992—),男,博士研究生。

, correspAuthorsNote=
崔崇(1957—),男,硕士,教授。
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赵秦仪(1992—),男,博士研究生。

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长期高温水热条件下活性粉末混凝土的水化规律
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赵秦仪 1 , 何兵 1 , 崔晓昱 2 , 侯剑桥 1 , 崔崇 1 , 马海龙 3
硅酸盐学报 | 2020,48(5): 665-674
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硅酸盐学报 | 2020 , 48 (5) : 665 -674
长期高温水热条件下活性粉末混凝土的水化规律
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赵秦仪(1992—),男,博士研究生。

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赵秦仪1 , 何兵1, 崔晓昱2, 侯剑桥1, 崔崇1 , 马海龙3
作者信息
  • 1.南京理工大学材料科学与工程学院,南京 210094
  • 2.苏州混凝土水泥制品研究院有限公司,江苏 苏州 215004
  • 3.宁夏大学民族预科教育学院,银川 750002
通讯作者:
崔崇(1957—),男,硕士,教授。
作者简介:

赵秦仪(1992—),男,博士研究生。

Hydration of Reactive Powder Concrete Matrix under Long-Term Hydrothermal Condition
Qinyi ZHAO1 , Bing HE1, Xiaoyu CUI2, Jianqiao HOU1, Chong CUI1 , Hailong MA3
Affiliations
  • 1.Nanjing University of Science and Technology, Materials Science and Engineering, Nanjing 210094, China
  • 2.Suzhou Concrete and Cement Products Research Institute Co. Ltd, Suzhou 215004, Jiangsu, China
  • 3.Ningxia University National Preparatory School of Education, Yinchuan 750002, China
  • Corresponding Author:
    CUI Chong (1957-), male, Master, Professor. E-mail:

    ZHAO Qinyi (1992-), male, Doctoral candidate. E-mail:

出版时间: 2020-05-20 doi: 10.14062/j.issn.0454-5648.20190504
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以0.21的水灰比成型活性粉末混凝土(RPC)基体,研究低水灰比RPC基体水化相在高温蒸压养护条件下的长期水化规律。采用酸不溶物含量表征基体的水化程度,采用显微维氏硬度表征RPC基体在养护过程中的结构性能,并通过X射线粉末衍射与扫描电子显微镜/能量色散谱分析RPC基体的物相与形貌变化。结果表明:高温蒸压养护过程中,RPC基体水化程度在0~96 h的养护期内快速提升,硬度随养护时间增加提升明显;长期养护时(168~312 h),基体的水化速率缓慢,基体内水泥熟料的水化趋于停滞。长期高温蒸压养护过程中,低水灰比RPC基体中晶态水化产物极少,由于缺乏晶态转化的空间,基体中的絮状水化硅酸钙凝胶无明显晶化现象,在长期高温水热条件下具有良好的稳定性,在核废料存储材料领域具有应用前景。

低水灰比  /  活性粉末混凝土  /  长期水热条件  /  水化程度  /  水化硅酸钙凝胶

A reactive powder concrete (RPC) matrix with a low water to cement ratio of 0.21 was prepared. The hydration of the RPC matrixes under long-term hydrothermal condition was investigated. The insoluble matter of the RPC matrix was examined to characterize its hydration level. The structural property of the RPC matrix was characterized using the Vickers hardness meter. The phase composition and morphology of the RPC matrix were characterized using X-ray powder diffraction and scanning electron microscopy/energy dispersive spectrometry. Under the hydrothermal condition, the hydration level of the RPC matrix increases during the autoclaved curing for 0-96 h, and the Vickers hardness of the RPC matrix also increases. The hydration rate of the RPC matrix is rather low, and the hydration of the clinker in the matrix becomes stopped during the long-term autoclaved curing (i.e., 168-312 h). In addition, there are a few crystalline hydrates in the RPC matrix cured for long-term, and the flocculent calcium silicate hydrates gel cannot be transferred to their crystalline forms due to the lack of space for the crystallization. The RPC matrix with a low water to cement ratio has a great stability under the long-term hydrothermal condition and a promising potential to be used as nuclear waste keeping materials.

low water to cement ratio  /  reactive powder concrete  /  long-term hydrothermal condition  /  hydration level  /  calcium silicate hydrates gel
赵秦仪, 何兵, 崔晓昱, 侯剑桥, 崔崇, 马海龙. 长期高温水热条件下活性粉末混凝土的水化规律. 硅酸盐学报, 2020 , 48 (5) : 665 -674 . DOI: 10.14062/j.issn.0454-5648.20190504
Qinyi ZHAO, Bing HE, Xiaoyu CUI, Jianqiao HOU, Chong CUI, Hailong MA. Hydration of Reactive Powder Concrete Matrix under Long-Term Hydrothermal Condition[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 665 -674 . DOI: 10.14062/j.issn.0454-5648.20190504
  • 国家自然基金项目(51772153; 51468053)
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doi: 10.14062/j.issn.0454-5648.20190504
  • 接收时间:2019-07-15
  • 首发时间:2026-10-29
  • 出版时间:2020-05-20
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  • 收稿日期:2019-07-15
  • 修回日期:2019-09-20
基金
国家自然基金项目(51772153; 51468053)
作者信息
    1.南京理工大学材料科学与工程学院,南京 210094
    2.苏州混凝土水泥制品研究院有限公司,江苏 苏州 215004
    3.宁夏大学民族预科教育学院,银川 750002

通讯作者:

崔崇(1957—),男,硕士,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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