Article(id=1322636302332310463, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636274364698818, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200151, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1583510400000, receivedDateStr=2020-03-07, revisedDate=1588608000000, revisedDateStr=2020-05-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1793270667869, onlineDateStr=2026-10-29, pubDate=1605801600000, pubDateStr=2020-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793270667869, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793270667869, creator=13701087609, updateTime=1793270667869, updator=13701087609, issue=Issue{id=1322636274364698818, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='11', pageStart='1689', pageEnd='1864', issueExtLink='null', onlineDate='null', pubDate='1605801600000', pubDateStr='2020-11-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793270661202, creator='13701087609', updateTime=1793277186220, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663642319930111, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636274364698818, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663642319930112, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636274364698818, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1842, endPage=1851, ext={EN=ArticleExt(id=1322636302705603520, articleId=1322636302332310463, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Pores Evolution and Characterization of Hardened Cement Mortar with Different Water/Cement Ratios under Capillary Suction of Deicing Solution Freeze-thaw Action, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

The hardened cement mortar samples with different water-cement ratios were prepared and subjected to salt freezing experiment (CDF freeze-thaw). The microscopic images and three-dimensional pore structure of hardened cement mortar with different freeze-thaw cycles were investigated by X-ray tomography. The evolution process and mechanism of meso-structure in freezing-thawing cycle were analyzed. The variation law of pore parameters of hardened cement mortar under the action of CDF freeze-thaw cycle and the influence of water-cement ratio on the freeze-resistance of mortar sample were investigated. The results show that the freezing-thawing microcracks develop along the porous interface between cement aggregate and fine aggregate, and the reduction of water-cement ratio can reduce the interfacial porosity, thus improving the frost resistance of cement-based materials. The cement mortar with a water-cement ratio of 0.30 has a stronger frost resistance. The freeze-thaw damage evolution and crushing process of cement mortar can be characterized by fractal dimension curve.

, authors=Jiawei HAN1, Chencheng YAN1, 2, Wulong HU1, Sirong ZHU1, Shilin YAN1, authorsList=Jiawei HAN, Chencheng YAN, Wulong HU, Sirong ZHU, Shilin YAN, authorCompany=null, correspAuthors=Wulong HU, authorNote=

HAN Jiawei (2001-), male, Undergraduate. E-mail:

, correspAuthorsNote=
HU Wulong (1986-), male, Ph.D., Associated Professor. E-mail:
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制备不同水灰比硬化水泥砂浆试样并进行盐冻实验(CDF冻融),通过X射线断层扫描获取不同冻融循环次数下硬化水泥砂浆的细观图像及三维孔隙结构,分析了冻融循环过程中细观结构演化过程及其机理,研究了CDF冻融循环作用下硬化水泥砂浆孔隙参数变化规律以及水灰比对砂浆试样抗冻性的影响。结果表明:冻融微裂缝沿着水泥集体与细骨料的多孔界面发展,降低水灰比可减少界面孔隙量,从而提高水泥基材料抗冻性能;水灰比0.30的水泥砂浆具有较强的抗冻性;水泥砂浆的冻融损伤演化及破碎过程可用分形维数曲线来表征。

, authors=韩家伟1, 严辰成1, 2, 胡五龙1, 朱四荣1, 晏石林1, authorsList=韩家伟, 严辰成, 胡五龙, 朱四荣, 晏石林, authorCompany=null, correspAuthors=胡五龙, authorNote=

韩家伟(2001—),男,本科生。

, correspAuthorsNote=
胡五龙(1986—),男,博士,副教授。
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盐冻条件下不同水灰比硬化水泥砂浆的孔隙演化及表征
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韩家伟 1 , 严辰成 1, 2 , 胡五龙 1 , 朱四荣 1 , 晏石林 1
硅酸盐学报 | 研究论文 2020,48(11): 1842-1851
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硅酸盐学报 |研究论文 2020 , 48 (11) : 1842 -1851
盐冻条件下不同水灰比硬化水泥砂浆的孔隙演化及表征
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韩家伟1 , 严辰成1, 2, 胡五龙1 , 朱四荣1, 晏石林1
作者信息
  • 1.武汉理工大学理学院,新材料力学理论与应用湖北省重点试验室,武汉 430070
  • 2.上海电气风电集团股份有限公司,上海 200241
通讯作者:
胡五龙(1986—),男,博士,副教授。
作者简介:

韩家伟(2001—),男,本科生。

Pores Evolution and Characterization of Hardened Cement Mortar with Different Water/Cement Ratios under Capillary Suction of Deicing Solution Freeze-thaw Action
Jiawei HAN1 , Chencheng YAN1, 2, Wulong HU1 , Sirong ZHU1, Shilin YAN1
Affiliations
  • 1.Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China
  • 2.Shanghai Electric Wind Power Group, Shanghai 200241, China
  • Corresponding Author:
    HU Wulong (1986-), male, Ph.D., Associated Professor. E-mail:

    HAN Jiawei (2001-), male, Undergraduate. E-mail:

出版时间: 2020-11-20 doi: 10.14062/j.issn.0454-5648.20200151
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制备不同水灰比硬化水泥砂浆试样并进行盐冻实验(CDF冻融),通过X射线断层扫描获取不同冻融循环次数下硬化水泥砂浆的细观图像及三维孔隙结构,分析了冻融循环过程中细观结构演化过程及其机理,研究了CDF冻融循环作用下硬化水泥砂浆孔隙参数变化规律以及水灰比对砂浆试样抗冻性的影响。结果表明:冻融微裂缝沿着水泥集体与细骨料的多孔界面发展,降低水灰比可减少界面孔隙量,从而提高水泥基材料抗冻性能;水灰比0.30的水泥砂浆具有较强的抗冻性;水泥砂浆的冻融损伤演化及破碎过程可用分形维数曲线来表征。

冻融循环  /  孔隙演化  /  水灰比  /  断层扫描  /  分形维数

The hardened cement mortar samples with different water-cement ratios were prepared and subjected to salt freezing experiment (CDF freeze-thaw). The microscopic images and three-dimensional pore structure of hardened cement mortar with different freeze-thaw cycles were investigated by X-ray tomography. The evolution process and mechanism of meso-structure in freezing-thawing cycle were analyzed. The variation law of pore parameters of hardened cement mortar under the action of CDF freeze-thaw cycle and the influence of water-cement ratio on the freeze-resistance of mortar sample were investigated. The results show that the freezing-thawing microcracks develop along the porous interface between cement aggregate and fine aggregate, and the reduction of water-cement ratio can reduce the interfacial porosity, thus improving the frost resistance of cement-based materials. The cement mortar with a water-cement ratio of 0.30 has a stronger frost resistance. The freeze-thaw damage evolution and crushing process of cement mortar can be characterized by fractal dimension curve.

freeze-thaw cycle  /  pore evolution  /  water-cement ratio  /  computed tomography  /  fractal dimension
韩家伟, 严辰成, 胡五龙, 朱四荣, 晏石林. 盐冻条件下不同水灰比硬化水泥砂浆的孔隙演化及表征. 硅酸盐学报, 2020 , 48 (11) : 1842 -1851 . DOI: 10.14062/j.issn.0454-5648.20200151
Jiawei HAN, Chencheng YAN, Wulong HU, Sirong ZHU, Shilin YAN. Pores Evolution and Characterization of Hardened Cement Mortar with Different Water/Cement Ratios under Capillary Suction of Deicing Solution Freeze-thaw Action[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (11) : 1842 -1851 . DOI: 10.14062/j.issn.0454-5648.20200151
  • 国家自然科学基金(11602180)
  • 中央高校基本科研业务费专项资金项目(WUT:2020LA001)
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2020年第48卷第11期
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doi: 10.14062/j.issn.0454-5648.20200151
  • 接收时间:2020-03-07
  • 首发时间:2026-10-29
  • 出版时间:2020-11-20
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  • 收稿日期:2020-03-07
  • 修回日期:2020-05-05
基金
国家自然科学基金(11602180)
中央高校基本科研业务费专项资金项目(WUT:2020LA001)
作者信息
    1.武汉理工大学理学院,新材料力学理论与应用湖北省重点试验室,武汉 430070
    2.上海电气风电集团股份有限公司,上海 200241

通讯作者:

胡五龙(1986—),男,博士,副教授。
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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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