Article(id=1322636262780023449, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636234858550134, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200261, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1586707200000, receivedDateStr=2020-04-13, revisedDate=1589817600000, revisedDateStr=2020-05-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1793270658439, onlineDateStr=2026-10-29, pubDate=1603123200000, pubDateStr=2020-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793270658439, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793270658439, creator=13701087609, updateTime=1793270658439, updator=13701087609, issue=Issue{id=1322636234858550134, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='10', pageStart='1505', pageEnd='1688', issueExtLink='null', onlineDate='null', pubDate='1603123200000', pubDateStr='2020-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793270651783, creator='13701087609', updateTime=1793277146795, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663476976267430, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636234858550134, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663476976267431, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636234858550134, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1653, endPage=1658, ext={EN=ArticleExt(id=1322636263375614618, articleId=1322636262780023449, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Well-dispersive carbon nanotubes (CNTs)/polyvinyl alcohol (PVA) nano-colloidal emulsions were prepared based on the colloidal stability and interfacial chemistry. The effect of CNTs/PVA nano-colloidal emulsion on the mechanical properties, dry shrinkage and morphology of concrete was investigated. The results show that the 28 d compressive strength and flexural strength of concrete incorporating 0.3% (in mass fraction, the same below) CNTs and 1.0% PVA are increased by 10% and 15%, respectively, and the dry shrinkage rate of concrete containing 0.5% CNTs and 1.0% PVA after 7, 28, 180 d and 360 d curing is reduced by 76%, 34%, 22% and 21%, respectively, compared to the reference concrete. The effect of CNT-OH/PVA latex on the mechanical properties and dry shrinkage rate of concrete is attributed to the formation of CNTs/PVA interpenetrating networks in concrete, which prevents the concrete crack and refines the microstructure.

, authors=Zhongkun WANG1, Jie FAN2, Gengying LI1, authorsList=Zhongkun WANG, Jie FAN, Gengying LI, authorCompany=null, correspAuthors=Gengying LI, authorNote=

WANG Zhongkun (1989-), male, Doctoral candidate. E-mail:

, correspAuthorsNote=
LI Gengying (1970-), female, Ph.D., Professor. E-mail:
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利用胶体稳定性和界面化学作用力制得了均匀分散的碳纳米管(CNTs)/聚乙烯醇(PVA)纳米胶体乳液。研究了CNTs/PVA纳米胶体乳液对混凝土的力学性能、干缩性能及微观结构的影响,探讨了CNTs/PVA的改善机理。结果表明:相对普通混凝土,掺杂0.3%(质量分数,下同)CNT和1.0% PVA的混凝土的28 d抗压、抗折强度分别提高了15%和10%;掺杂0.5%CNT和1.0% PVA的混凝土的7、28、180 d和360 d干缩率分别降低了76%、34%、22%和21%。CNTs/PVA可在混凝土中形成互穿网络,具有长纤维效应和微细环箍效应,少量的CNTs/PVA能提高混凝土的极限抗拉和抗折强度,降低干缩性能。

, authors=王中坤1, 范杰2, 李庚英1, authorsList=王中坤, 范杰, 李庚英, authorCompany=null, correspAuthors=李庚英, authorNote=

王中坤(1989—),男,博士研究生。

, correspAuthorsNote=
李庚英(1970—),女,博士,教授。
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碳纳米管/聚乙烯醇对混凝土力学和干缩性能的影响
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王中坤 1 , 范杰 2 , 李庚英 1
硅酸盐学报 | 2020,48(10): 1653-1658
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硅酸盐学报 | 2020 , 48 (10) : 1653 -1658
碳纳米管/聚乙烯醇对混凝土力学和干缩性能的影响
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王中坤1 , 范杰2, 李庚英1
作者信息
  • 1.华南农业大学水利与土木工程学院,广州 510642
  • 2.贵州理工学院土木工程学院,贵阳 550003
通讯作者:
李庚英(1970—),女,博士,教授。
作者简介:

王中坤(1989—),男,博士研究生。

Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete
Zhongkun WANG1 , Jie FAN2, Gengying LI1
Affiliations
  • 1.College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, China
  • 2.College of Civil Engineering, Guizhou Institute of Technology, Guiyang 550003, China
  • Corresponding Author:
    LI Gengying (1970-), female, Ph.D., Professor. E-mail:

    WANG Zhongkun (1989-), male, Doctoral candidate. E-mail:

出版时间: 2020-10-20 doi: 10.14062/j.issn.0454-5648.20200261
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利用胶体稳定性和界面化学作用力制得了均匀分散的碳纳米管(CNTs)/聚乙烯醇(PVA)纳米胶体乳液。研究了CNTs/PVA纳米胶体乳液对混凝土的力学性能、干缩性能及微观结构的影响,探讨了CNTs/PVA的改善机理。结果表明:相对普通混凝土,掺杂0.3%(质量分数,下同)CNT和1.0% PVA的混凝土的28 d抗压、抗折强度分别提高了15%和10%;掺杂0.5%CNT和1.0% PVA的混凝土的7、28、180 d和360 d干缩率分别降低了76%、34%、22%和21%。CNTs/PVA可在混凝土中形成互穿网络,具有长纤维效应和微细环箍效应,少量的CNTs/PVA能提高混凝土的极限抗拉和抗折强度,降低干缩性能。

混凝土  /  碳纳米管  /  聚乙烯醇  /  力学性能  /  干缩性能

Well-dispersive carbon nanotubes (CNTs)/polyvinyl alcohol (PVA) nano-colloidal emulsions were prepared based on the colloidal stability and interfacial chemistry. The effect of CNTs/PVA nano-colloidal emulsion on the mechanical properties, dry shrinkage and morphology of concrete was investigated. The results show that the 28 d compressive strength and flexural strength of concrete incorporating 0.3% (in mass fraction, the same below) CNTs and 1.0% PVA are increased by 10% and 15%, respectively, and the dry shrinkage rate of concrete containing 0.5% CNTs and 1.0% PVA after 7, 28, 180 d and 360 d curing is reduced by 76%, 34%, 22% and 21%, respectively, compared to the reference concrete. The effect of CNT-OH/PVA latex on the mechanical properties and dry shrinkage rate of concrete is attributed to the formation of CNTs/PVA interpenetrating networks in concrete, which prevents the concrete crack and refines the microstructure.

concrete  /  carbon nanotubes  /  polyvinyl alcohol  /  mechanical properties  /  dry shrinkage
王中坤, 范杰, 李庚英. 碳纳米管/聚乙烯醇对混凝土力学和干缩性能的影响. 硅酸盐学报, 2020 , 48 (10) : 1653 -1658 . DOI: 10.14062/j.issn.0454-5648.20200261
Zhongkun WANG, Jie FAN, Gengying LI. Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (10) : 1653 -1658 . DOI: 10.14062/j.issn.0454-5648.20200261
  • 国家自然科学基金资助项目(51878299; 51378303)
  • 广东省普通高校重点专项(2019KZDZX2001)
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2020年第48卷第10期
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doi: 10.14062/j.issn.0454-5648.20200261
  • 接收时间:2020-04-13
  • 首发时间:2026-10-29
  • 出版时间:2020-10-20
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  • 收稿日期:2020-04-13
  • 修回日期:2020-05-19
基金
国家自然科学基金资助项目(51878299; 51378303)
广东省普通高校重点专项(2019KZDZX2001)
作者信息
    1.华南农业大学水利与土木工程学院,广州 510642
    2.贵州理工学院土木工程学院,贵阳 550003

通讯作者:

李庚英(1970—),女,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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