Article(id=1322942455821250883, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942446610559222, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200392, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1591113600000, receivedDateStr=2020-06-03, revisedDate=1594051200000, revisedDateStr=2020-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343660549, onlineDateStr=2026-10-30, pubDate=1613750400000, pubDateStr=2021-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343660549, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343660549, creator=13701087609, updateTime=1793343660549, updator=13701087609, issue=Issue{id=1322942446610559222, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='2', pageStart='211', pageEnd='440', issueExtLink='null', onlineDate='null', pubDate='1613750400000', pubDateStr='2021-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343658354, creator='13701087609', updateTime=1793345474672, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322950064863314723, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942446610559222, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322950064863314724, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942446610559222, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=305, endPage=311, ext={EN=ArticleExt(id=1322942456072909125, articleId=1322942455821250883, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Scale Effect of Cubic Compressive Strength of Ultra-high Performance Concrete, columnId=1319726165087077079, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Article, runingTitle=null, highlight=null, articleAbstract=

The effects of strength grade, steel fiber content on the compressive strength and its scale effect of ultra-high performance concrete (UHPC) were investigated via cubic compressive strength tests on the UHPC cubic specimens with different sizes, strength grades and fiber contents. The results show that the scale effect of the cubic compressive strength becomes more obvious with the increase of strength grade. The scale effect of the cubic compressive strength of the plain UHPC specimen with a strength grade R160 is 1.72 times greater than that of the specimen with a strength grade of R120. The content of steel fiber has an effect on the scale effect of the cubic compressive strength. The greater the content of steel fiber is, the more pronounced the scale effect will be. The scale effect on the cubic compressive strength of specimens with a fiber content of 3% is 46% greater than that of the specimens without steel fiber reinforcement. The size conversion factors for cubic compressive strength of the UHPC with different strength grade sand the calculation formulas for the scale effect law of the cubic compressive strength of the UHPC are proposed. The proposed formulas can be used to analyze the cubic compressive strength of the UHPC.

, authors=Jie SU1, 2, Wei LIU1, Caijun SHI1, 2, Zhi FANG1, authorsList=Jie SU, Wei LIU, Caijun SHI, Zhi FANG, authorCompany=null, correspAuthors=null, authorNote=

SU Jie (1979-), male, Ph. D, Associate Professor. E-mail:

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通过5种几何尺寸、3个强度等级和4种钢纤维掺量的超高性能混凝土(UHPC)立方体试件的抗压试验,研究了强度等级和钢纤维体积掺量等对UHPC立方体抗压强度及尺寸效应的影响,结果表明:UHPC立方体试件抗压强度的尺寸效应随强度等级的增加而趋于明显,R160级UHPC基体抗压强度尺寸效应度约为R120级UHPC基体的1.72倍。钢纤维掺量对UHPC抗压强度尺寸效应有较大影响,掺入3%钢纤维UHPC立方体试件抗压强度尺寸效应度比未掺加钢纤维的试件提高了46%。提出了UHPC立方体抗压强度尺寸换算系数建议值,建立了UHPC抗压强度尺寸效应律中参数的计算公式,可用于UHPC立方体抗压强度的分析计算。

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苏捷(1979—),男,博士,副教授。

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超高性能混凝土立方体抗压强度尺寸效应
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苏捷 1, 2 , 刘伟 1 , 史才军 1, 2 , 方志 1
硅酸盐学报 | 研究论文 2021,49(2): 305-311
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硅酸盐学报 |研究论文 2021 , 49 (2) : 305 -311
超高性能混凝土立方体抗压强度尺寸效应
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苏捷1, 2 , 刘伟1, 史才军1, 2, 方志1
作者信息
  • 1.湖南大学绿色先进土木工程材料及应用技术湖南省重点实验室,长沙 410082
  • 2.湖南大学土木工程学院,长沙 410082
作者简介:

苏捷(1979—),男,博士,副教授。

Scale Effect of Cubic Compressive Strength of Ultra-high Performance Concrete
Jie SU1, 2 , Wei LIU1, Caijun SHI1, 2, Zhi FANG1
Affiliations
  • 1.Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, Hunan University, Changsha 410082, China
  • 2.College of Civil Engineering, Hunan University, Changsha 410082, China
  • SU Jie (1979-), male, Ph. D, Associate Professor. E-mail:

出版时间: 2021-02-20 doi: 10.14062/j.issn.0454-5648.20200392
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通过5种几何尺寸、3个强度等级和4种钢纤维掺量的超高性能混凝土(UHPC)立方体试件的抗压试验,研究了强度等级和钢纤维体积掺量等对UHPC立方体抗压强度及尺寸效应的影响,结果表明:UHPC立方体试件抗压强度的尺寸效应随强度等级的增加而趋于明显,R160级UHPC基体抗压强度尺寸效应度约为R120级UHPC基体的1.72倍。钢纤维掺量对UHPC抗压强度尺寸效应有较大影响,掺入3%钢纤维UHPC立方体试件抗压强度尺寸效应度比未掺加钢纤维的试件提高了46%。提出了UHPC立方体抗压强度尺寸换算系数建议值,建立了UHPC抗压强度尺寸效应律中参数的计算公式,可用于UHPC立方体抗压强度的分析计算。

超高性能混凝土  /  立方体抗压强度  /  尺寸效应  /  钢纤维

The effects of strength grade, steel fiber content on the compressive strength and its scale effect of ultra-high performance concrete (UHPC) were investigated via cubic compressive strength tests on the UHPC cubic specimens with different sizes, strength grades and fiber contents. The results show that the scale effect of the cubic compressive strength becomes more obvious with the increase of strength grade. The scale effect of the cubic compressive strength of the plain UHPC specimen with a strength grade R160 is 1.72 times greater than that of the specimen with a strength grade of R120. The content of steel fiber has an effect on the scale effect of the cubic compressive strength. The greater the content of steel fiber is, the more pronounced the scale effect will be. The scale effect on the cubic compressive strength of specimens with a fiber content of 3% is 46% greater than that of the specimens without steel fiber reinforcement. The size conversion factors for cubic compressive strength of the UHPC with different strength grade sand the calculation formulas for the scale effect law of the cubic compressive strength of the UHPC are proposed. The proposed formulas can be used to analyze the cubic compressive strength of the UHPC.

ultra-high performance concrete  /  cubic compressive strength  /  scale effect  /  steel fiber
苏捷, 刘伟, 史才军, 方志. 超高性能混凝土立方体抗压强度尺寸效应. 硅酸盐学报, 2021 , 49 (2) : 305 -311 . DOI: 10.14062/j.issn.0454-5648.20200392
Jie SU, Wei LIU, Caijun SHI, Zhi FANG. Scale Effect of Cubic Compressive Strength of Ultra-high Performance Concrete[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (2) : 305 -311 . DOI: 10.14062/j.issn.0454-5648.20200392
  • 国家重点研发计划项目(2018YFC0705400)
  • 国家自然科学基金项目(51408213)
  • 湖南省自然科学基金项目(2018JJ2042)
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doi: 10.14062/j.issn.0454-5648.20200392
  • 接收时间:2020-06-03
  • 首发时间:2026-10-30
  • 出版时间:2021-02-20
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  • 收稿日期:2020-06-03
  • 修回日期:2020-07-07
基金
国家重点研发计划项目(2018YFC0705400)
国家自然科学基金项目(51408213)
湖南省自然科学基金项目(2018JJ2042)
作者信息
    1.湖南大学绿色先进土木工程材料及应用技术湖南省重点实验室,长沙 410082
    2.湖南大学土木工程学院,长沙 410082
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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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