Article(id=1322622789119488595, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322622757339250965, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190566, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1566057600000, receivedDateStr=2019-08-18, revisedDate=1578844800000, revisedDateStr=2020-01-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1793267446068, onlineDateStr=2026-10-29, pubDate=1595174400000, pubDateStr=2020-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793267446068, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793267446068, creator=13701087609, updateTime=1793267446068, updator=13701087609, issue=Issue{id=1322622757339250965, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='7', pageStart='939', pageEnd='1144', issueExtLink='null', onlineDate='null', pubDate='1595174400000', pubDateStr='2020-07-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793267438492, creator='13701087609', updateTime=1793277091258, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663244053992200, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322622757339250965, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663244053992201, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322622757339250965, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1107, endPage=1113, ext={EN=ArticleExt(id=1322622789408895572, articleId=1322622789119488595, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Influences of Sand Ratio and Paste Aggregate Ratio on Fresh Properties of High-Fluidity Concrete, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

The influences of sand ratio and paste aggregate ratio on fresh properties of high-fluidity concrete (HFC) were investigated. Two strength grades of HFC with different sand ratios and paste aggregate ratios were prepared. The fresh properties of HFC were investigated by rheological experiment, workability measurement and sliper test. The results show that the rheological properties and workability of HFC are related to the sand ratio and paste aggregate ratio. The yield stress and plastic viscosity of HFC and the lubrication layer initially firstly decrease and then increase with the increase of sand ratio. With the change of sand ratio of 6.38%, the variation range of yield stress of HFC can be up to about 27%, and the variation range of plastic viscosity can be up to about 78%. The yield stress and plastic viscosity of HFC and the lubrication layer gradually decrease with the increase of paste aggregate ratio. With the change of paste aggregate ratio of 16.07%, the variation range of yield stress of HFC can be up to about 331%, and the variation range of plastic viscosity can be up to about 204%. The varying tendency of workability of concrete is consistent with its rheological properties. A linear relationship between pumping pressure and quantity of flow for concrete predicted by sliper test shows the contribution of the lubrication layer to the process of pumping. The reliability of yield stress of the lubrication layer based on the sliper test is low.

, authors=Mengyuan LI1, Yu LIU1, Jianguo HAN1, Yuting GAO2, Huijie ZHANG2, Peiyu YAN1, authorsList=Mengyuan LI, Yu LIU, Jianguo HAN, Yuting GAO, Huijie ZHANG, Peiyu YAN, authorCompany=null, correspAuthors=Peiyu YAN, authorNote=

LI Mengyuan (1988-), male, Ph.D., Assistant Researcher. E-mail:

, correspAuthorsNote=
YAN Peiyu (1955-), male, Ph.D., Professor. E-mail:
, 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=1322622789857686101, articleId=1322622789119488595, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=砂率与浆骨比对大流动性混凝土新拌性能的影响, columnId=1263922770220560512, journalTitle=硅酸盐学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

研究了砂率和浆骨比对大流动性混凝土(HFC)新拌性能的影响。对2种强度等级的HFC,通过改变砂率与浆骨比制得不同性能的拌合物。通过流变试验、工作性试验和滑管试验,研究了HFC的新拌性能。结果表明:HFC的流变性能和工作性对砂率和浆骨比的变化较为敏感。随着砂率的增加,HFC与润滑层的屈服应力与塑性黏度先减小后增大。砂率改变6.38%,HFC屈服应力的变化幅度可高达约27%,塑性黏度的变化幅度可高达约78%。随着浆骨比的增加,HFC与润滑层的屈服应力和塑性黏度逐渐减小。浆骨比改变16.07%,HFC屈服应力的变化幅度可高达约331%,塑性黏度的变化幅度可高达约204%。混凝土工作性的变化规律与其流变性能的变化规律一致。滑管试验所预测的混凝土泵压与流量之间的线性关系只能反映出润滑层对泵送过程的贡献。基于滑管试验所得的润滑层的屈服应力的可信度较低。

, authors=黎梦圆1, 刘宇1, 韩建国1, 高玉亭2, 张慧杰2, 阎培渝1, authorsList=黎梦圆, 刘宇, 韩建国, 高玉亭, 张慧杰, 阎培渝, authorCompany=null, correspAuthors=阎培渝, authorNote=

黎梦圆(1988—),男,博士,助理研究员。

, correspAuthorsNote=
阎培渝(1955—),男,博士,教授。
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黎梦圆(1988—),男,博士,助理研究员。

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黎梦圆(1988—),男,博士,助理研究员。

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砂率与浆骨比对大流动性混凝土新拌性能的影响
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黎梦圆 1 , 刘宇 1 , 韩建国 1 , 高玉亭 2 , 张慧杰 2 , 阎培渝 1
硅酸盐学报 | 研究论文 2020,48(7): 1107-1113
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硅酸盐学报 |研究论文 2020 , 48 (7) : 1107 -1113
砂率与浆骨比对大流动性混凝土新拌性能的影响
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黎梦圆1 , 刘宇1, 韩建国1, 高玉亭2, 张慧杰2, 阎培渝1
作者信息
  • 1.清华大学土木工程系,北京 100084
  • 2.深圳市建工集团股份有限公司,深圳 518051
通讯作者:
阎培渝(1955—),男,博士,教授。
作者简介:

黎梦圆(1988—),男,博士,助理研究员。

Influences of Sand Ratio and Paste Aggregate Ratio on Fresh Properties of High-Fluidity Concrete
Mengyuan LI1 , Yu LIU1, Jianguo HAN1, Yuting GAO2, Huijie ZHANG2, Peiyu YAN1
Affiliations
  • 1.Department of Civil Engineering, Tsinghua University, Beijing 100084, China
  • 2.Shenzhen Construction Engineering Group Co. Ltd., Shenzhen 518051, China
  • Corresponding Author:
    YAN Peiyu (1955-), male, Ph.D., Professor. E-mail:

    LI Mengyuan (1988-), male, Ph.D., Assistant Researcher. E-mail:

出版时间: 2020-07-20 doi: 10.14062/j.issn.0454-5648.20190566
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研究了砂率和浆骨比对大流动性混凝土(HFC)新拌性能的影响。对2种强度等级的HFC,通过改变砂率与浆骨比制得不同性能的拌合物。通过流变试验、工作性试验和滑管试验,研究了HFC的新拌性能。结果表明:HFC的流变性能和工作性对砂率和浆骨比的变化较为敏感。随着砂率的增加,HFC与润滑层的屈服应力与塑性黏度先减小后增大。砂率改变6.38%,HFC屈服应力的变化幅度可高达约27%,塑性黏度的变化幅度可高达约78%。随着浆骨比的增加,HFC与润滑层的屈服应力和塑性黏度逐渐减小。浆骨比改变16.07%,HFC屈服应力的变化幅度可高达约331%,塑性黏度的变化幅度可高达约204%。混凝土工作性的变化规律与其流变性能的变化规律一致。滑管试验所预测的混凝土泵压与流量之间的线性关系只能反映出润滑层对泵送过程的贡献。基于滑管试验所得的润滑层的屈服应力的可信度较低。

砂率  /  浆骨比  /  工作性  /  流变性能  /  泵送性能  /  大流动性混凝土

The influences of sand ratio and paste aggregate ratio on fresh properties of high-fluidity concrete (HFC) were investigated. Two strength grades of HFC with different sand ratios and paste aggregate ratios were prepared. The fresh properties of HFC were investigated by rheological experiment, workability measurement and sliper test. The results show that the rheological properties and workability of HFC are related to the sand ratio and paste aggregate ratio. The yield stress and plastic viscosity of HFC and the lubrication layer initially firstly decrease and then increase with the increase of sand ratio. With the change of sand ratio of 6.38%, the variation range of yield stress of HFC can be up to about 27%, and the variation range of plastic viscosity can be up to about 78%. The yield stress and plastic viscosity of HFC and the lubrication layer gradually decrease with the increase of paste aggregate ratio. With the change of paste aggregate ratio of 16.07%, the variation range of yield stress of HFC can be up to about 331%, and the variation range of plastic viscosity can be up to about 204%. The varying tendency of workability of concrete is consistent with its rheological properties. A linear relationship between pumping pressure and quantity of flow for concrete predicted by sliper test shows the contribution of the lubrication layer to the process of pumping. The reliability of yield stress of the lubrication layer based on the sliper test is low.

sand ratio  /  paste aggregate ratio  /  workability  /  rheology  /  pumpability  /  high-fluidity concrete
黎梦圆, 刘宇, 韩建国, 高玉亭, 张慧杰, 阎培渝. 砂率与浆骨比对大流动性混凝土新拌性能的影响. 硅酸盐学报, 2020 , 48 (7) : 1107 -1113 . DOI: 10.14062/j.issn.0454-5648.20190566
Mengyuan LI, Yu LIU, Jianguo HAN, Yuting GAO, Huijie ZHANG, Peiyu YAN. Influences of Sand Ratio and Paste Aggregate Ratio on Fresh Properties of High-Fluidity Concrete[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (7) : 1107 -1113 . DOI: 10.14062/j.issn.0454-5648.20190566
  • 国家重点研发计划项目(2017YFB0310101)
  • 中国博士后科学基金(2019TQ0162)
  • 国家自然科学基金项目(51678343)
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2020年第48卷第7期
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doi: 10.14062/j.issn.0454-5648.20190566
  • 接收时间:2019-08-18
  • 首发时间:2026-10-29
  • 出版时间:2020-07-20
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  • 收稿日期:2019-08-18
  • 修回日期:2020-01-13
基金
国家重点研发计划项目(2017YFB0310101)
中国博士后科学基金(2019TQ0162)
国家自然科学基金项目(51678343)
作者信息
    1.清华大学土木工程系,北京 100084
    2.深圳市建工集团股份有限公司,深圳 518051

通讯作者:

阎培渝(1955—),男,博士,教授。
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https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20190566
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2种不同金属材料的力学参数
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属
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Number of
species
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Percentage of total
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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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