Article(id=1322943064968409342, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322943027827848128, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210198, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1616774400000, receivedDateStr=2021-03-27, revisedDate=1618329600000, revisedDateStr=2021-04-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343805781, onlineDateStr=2026-10-30, pubDate=1637337600000, pubDateStr=2021-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343805781, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343805781, creator=13701087609, updateTime=1793343805781, updator=13701087609, issue=Issue{id=1322943027827848128, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='11', pageStart='2313', pageEnd='2548', issueExtLink='null', onlineDate='null', pubDate='1637337600000', pubDateStr='2021-11-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343796927, creator='13701087609', updateTime=1793345952795, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322952070252343421, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322943027827848128, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322952070252343422, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322943027827848128, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2393, endPage=2404, ext={EN=ArticleExt(id=1322943065169735935, articleId=1322943064968409342, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Interfacial Bond Performance of Ultrahigh Performance Concrete Wet Joints, columnId=1322943028415050689, journalTitle=Journal of the Chinese Ceramic Society, columnName=Special Issue on Ultra-HiHh HerHorHance Concrete Ⅱ, runingTitle=null, highlight=null, articleAbstract=

The interfacial failure characteristic, tensile strength and tensile-strength ratio (the ratio of interfacial tensile strength of wet-joint specimen to that of monolithic specimen) of the ultrahigh performance concrete (UHPC) wet joints were investigated. The results indicate that all the UHPC wet-joint specimens exhibit the brittle failure. Compared to the specimens without steel fiber (the interfacial tensile strength is 2.24 MPa), UHPC wet-joint specimens with steel fiber show a better interfacial bond performance with the interfacial tensile strength of 6.64 MPa and the tensile-strength ratio of 68.6%. When the fiber volume fraction is no more than 2.5%, the interfacial tensile strength, tensile-strength ratio and interface fracture toughness of wet-joint specimens increase with increasing the fiber volume fraction, and the optimum fiber volume fraction is 2.5%. The long fibers have better performances than the short fibers in improving the interfacial tensile strength, tensile-strength ratio and interface fracture toughness of UHPC wet joints, and the profiled fibers perform better than the straight fibers. The ductility of the steel-rebar-reinforced wet-joint specimens is better than that of the unreinforced wet-joint specimens. Increasing the embedment length and interfacial reinforcement ratio is an efficient way to improve the ductility and interfacial tensile strength of UHPC wet joints. When the embedment length of the reinforcement is 6 times as the rebar diameter, the interfacial tensile strength of the wet joints is greater than that of monolithic UHPC. In addition, the simplified tensile stress-relative displacement models were proposed for the UHPC wet-joint interface at different fiber parameters.

, authors=Zheng FENG, Chuanxi LI, Haichun LI, Jiale ZHOU, Rensheng PAN, Gaocheng LIU, authorsList=Zheng FENG, Chuanxi LI, Haichun LI, Jiale ZHOU, Rensheng PAN, Gaocheng LIU, authorCompany=null, correspAuthors=Chuanxi LI, authorNote=

FENG Zheng (1992-), male, Doctoral candidate. E-mail:

, correspAuthorsNote=
LI Chuanxi (1963-), 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=1322943065450754304, articleId=1322943064968409342, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=超高性能混凝土湿接缝界面粘结性能, columnId=1322636275924979909, journalTitle=硅酸盐学报, columnName=超高性能混凝土专题Ⅱ, runingTitle=null, highlight=null, articleAbstract=

研究了超高性能混凝土(UHPC)湿接缝界面破坏特性、拉伸强度以及拉伸强度比(接缝试件界面拉伸强度相对于整体试件的比值)等。结果表明:所有UHPC湿接缝试件的破坏模式均为脆性破坏;相比于未掺纤维湿接缝试件(界面拉伸强度2.24 MPa),掺纤维UHPC湿接缝试件具有更好的界面粘结性能(界面拉伸强度可达6.64 MPa,拉伸强度比可达68.6%);当纤维体积掺量不大于2.5%时,湿接缝试件的界面拉伸强度、拉伸强度比以及界面断裂韧性均随纤维体积掺量的增大而增大,最佳纤维体积掺量为2.5%;长纤维对UHPC湿接缝界面拉伸强度、拉伸强度比以及界面断裂韧性的提升效果优于短纤维,异形纤维优于平直形纤维;配筋UHPC湿接缝试件延性特征显著优于未配筋试件,增加钢筋锚固长度、界面配筋率是提高UHPC湿接缝延性特征和界面拉伸强度的较有效方法;当钢筋锚固长度达到6倍钢筋直径时,湿接缝处界面拉伸强度大于整体浇筑UHPC拉伸强度。此外,构建了不同纤维参数下UHPC湿接缝界面拉伸应力-相对位移简化模型。

, authors=冯峥, 李传习, 李海春, 周佳乐, 潘仁胜, 刘高成, authorsList=冯峥, 李传习, 李海春, 周佳乐, 潘仁胜, 刘高成, authorCompany=null, correspAuthors=李传习, authorNote=

冯峥(1992—),男,博士研究生。

, correspAuthorsNote=
李传习(1963—),博士,教授。
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FENG Zheng (1992-), male, Doctoral candidate. E-mail:

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超高性能混凝土湿接缝界面粘结性能
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冯峥 , 李传习 , 李海春 , 周佳乐 , 潘仁胜 , 刘高成
硅酸盐学报 | 超高性能混凝土专题Ⅱ 2021,49(11): 2393-2404
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硅酸盐学报 |超高性能混凝土专题Ⅱ 2021 , 49 (11) : 2393 -2404
超高性能混凝土湿接缝界面粘结性能
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冯峥 , 李传习 , 李海春, 周佳乐, 潘仁胜, 刘高成
作者信息
  • 长沙理工大学,桥梁与建筑绿色建造与维护湖南省重点实验室,桥梁工程安全控制教育部重点实验室,长沙 410004
通讯作者:
李传习(1963—),博士,教授。
作者简介:

冯峥(1992—),男,博士研究生。

Interfacial Bond Performance of Ultrahigh Performance Concrete Wet Joints
Zheng FENG , Chuanxi LI , Haichun LI, Jiale ZHOU, Rensheng PAN, Gaocheng LIU
Affiliations
  • Key Laboratory of Green Construction and Maintenance of Bridges and Buildings of Hu'nan Province, Key Laboratory of Safety Control for Bridge Engineering of the Ministry of Education, Changsha University of Science & Technology, Changsha 410004, China
  • Corresponding Author:
    LI Chuanxi (1963-), male, Ph. D., Professor. E-mail:

    FENG Zheng (1992-), male, Doctoral candidate. E-mail:

出版时间: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210198
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研究了超高性能混凝土(UHPC)湿接缝界面破坏特性、拉伸强度以及拉伸强度比(接缝试件界面拉伸强度相对于整体试件的比值)等。结果表明:所有UHPC湿接缝试件的破坏模式均为脆性破坏;相比于未掺纤维湿接缝试件(界面拉伸强度2.24 MPa),掺纤维UHPC湿接缝试件具有更好的界面粘结性能(界面拉伸强度可达6.64 MPa,拉伸强度比可达68.6%);当纤维体积掺量不大于2.5%时,湿接缝试件的界面拉伸强度、拉伸强度比以及界面断裂韧性均随纤维体积掺量的增大而增大,最佳纤维体积掺量为2.5%;长纤维对UHPC湿接缝界面拉伸强度、拉伸强度比以及界面断裂韧性的提升效果优于短纤维,异形纤维优于平直形纤维;配筋UHPC湿接缝试件延性特征显著优于未配筋试件,增加钢筋锚固长度、界面配筋率是提高UHPC湿接缝延性特征和界面拉伸强度的较有效方法;当钢筋锚固长度达到6倍钢筋直径时,湿接缝处界面拉伸强度大于整体浇筑UHPC拉伸强度。此外,构建了不同纤维参数下UHPC湿接缝界面拉伸应力-相对位移简化模型。

超高性能混凝土  /  湿接缝  /  界面粘结性能  /  钢纤维  /  钢筋  /  锚固长度

The interfacial failure characteristic, tensile strength and tensile-strength ratio (the ratio of interfacial tensile strength of wet-joint specimen to that of monolithic specimen) of the ultrahigh performance concrete (UHPC) wet joints were investigated. The results indicate that all the UHPC wet-joint specimens exhibit the brittle failure. Compared to the specimens without steel fiber (the interfacial tensile strength is 2.24 MPa), UHPC wet-joint specimens with steel fiber show a better interfacial bond performance with the interfacial tensile strength of 6.64 MPa and the tensile-strength ratio of 68.6%. When the fiber volume fraction is no more than 2.5%, the interfacial tensile strength, tensile-strength ratio and interface fracture toughness of wet-joint specimens increase with increasing the fiber volume fraction, and the optimum fiber volume fraction is 2.5%. The long fibers have better performances than the short fibers in improving the interfacial tensile strength, tensile-strength ratio and interface fracture toughness of UHPC wet joints, and the profiled fibers perform better than the straight fibers. The ductility of the steel-rebar-reinforced wet-joint specimens is better than that of the unreinforced wet-joint specimens. Increasing the embedment length and interfacial reinforcement ratio is an efficient way to improve the ductility and interfacial tensile strength of UHPC wet joints. When the embedment length of the reinforcement is 6 times as the rebar diameter, the interfacial tensile strength of the wet joints is greater than that of monolithic UHPC. In addition, the simplified tensile stress-relative displacement models were proposed for the UHPC wet-joint interface at different fiber parameters.

ultra-high performance concrete  /  wet joints  /  interfacial bond performance  /  steel fiber  /  reinforcement  /  embedment length
冯峥, 李传习, 李海春, 周佳乐, 潘仁胜, 刘高成. 超高性能混凝土湿接缝界面粘结性能. 硅酸盐学报, 2021 , 49 (11) : 2393 -2404 . DOI: 10.14062/j.issn.0454-5648.20210198
Zheng FENG, Chuanxi LI, Haichun LI, Jiale ZHOU, Rensheng PAN, Gaocheng LIU. Interfacial Bond Performance of Ultrahigh Performance Concrete Wet Joints[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2393 -2404 . DOI: 10.14062/j.issn.0454-5648.20210198
  • 国家自然科学基金项目(51778069; 52078059; 51808055)
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2021年第49卷第11期
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doi: 10.14062/j.issn.0454-5648.20210198
  • 接收时间:2021-03-27
  • 首发时间:2026-10-30
  • 出版时间:2021-11-20
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  • 收稿日期:2021-03-27
  • 修回日期:2021-04-14
基金
国家自然科学基金项目(51778069; 52078059; 51808055)
作者信息
    长沙理工大学,桥梁与建筑绿色建造与维护湖南省重点实验室,桥梁工程安全控制教育部重点实验室,长沙 410004

通讯作者:

李传习(1963—),博士,教授。
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2种不同金属材料的力学参数
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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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