Article(id=1322943818923910049, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322943027827848128, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20200941, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1608480000000, receivedDateStr=2020-12-21, revisedDate=1613750400000, revisedDateStr=2021-02-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343985539, onlineDateStr=2026-10-30, pubDate=1637337600000, pubDateStr=2021-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343985539, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343985539, creator=13701087609, updateTime=1793343985539, 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=2486, endPage=2493, ext={EN=ArticleExt(id=1322943819183956898, articleId=1322943818923910049, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Dynamic Mechanical Properties of Carbon Nanotubes Enhanced Cement Paste, columnId=1319726165087077079, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Article, runingTitle=null, highlight=null, articleAbstract=

The dynamic characteristics of cement paste samples with different contents (mass ratio to cement) of carbon nanotubes (CNTs) under impact loads were investigated by a split Hopkinson pressure bar (SHPB) apparatus, and the microscopic characteristics of cement paste with CNTs were revealed by scanning electron microscopy. The results show that the dynamic compressive strength, elastic modulus and peak toughness of the samples all firstly increase and then decrease with the increase of CNTs content. When the CNTs content is 0.10%, the three samples reach the maximum values, and the increments are 34.1%, 70.0%, and 15.4%, respectively. However, the damage degree of the sample shows an opposite change law. The sample with 0.10% CNTs content has the lowest degree of crushing, and the fractal dimension is reduced by 22.3%, compared to the blank sample. Adding an appropriate amount of CNTs can improve the pore size distribution of cement matrix, and fill and bridge pores and cracks to make it denser, but the excessive amount of CNTs addition can cause aggregation and deteriorate the mechanical properties of cement-based composites.

, authors=Chao WANG1, Liyuan YU1, Mingrui DU2, Haijian SU1, Jiangyu WU1, Yun GE1, authorsList=Chao WANG, Liyuan YU, Mingrui DU, Haijian SU, Jiangyu WU, Yun GE, authorCompany=null, correspAuthors=Liyuan YU, authorNote=

WANG Chao (1996-), male, Master candidate. E-mail:

, correspAuthorsNote=
YU Liyuan (1982-), male, Ph. D., Professor. E-mail:
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利用分离式Hopkinson压杆(SHPB)装置对不同掺量(占水泥的质量分数)碳纳米管(CNTs)的水泥净浆试样在冲击荷载下的动力学特性展开研究,并利用扫描电子显微镜揭示了含CNTs水泥净浆的微观形貌特征。结果表明:在恒定冲击荷载下,试样的动态抗压强度、弹性模量和峰值韧度均随CNTs掺量的增加呈现出先增加后减小的趋势;CNTs掺量为0.1%时,三者达到最大值,与空白对照试样相比,其增幅分别为34.1%、70.0%和15.4%;试样的破坏程度表现出相反的变化规律,0.1%CNTs掺量的试样破碎程度最低,分形维数较空白试样减小了22.3%;适量的CNTs可改善水泥基体的孔径分布,对孔洞、裂缝进行填充与桥接,使其更加致密,但当其掺量过高极易发生团聚,降低基体的力学性能。

, authors=王超1, 蔚立元1, 杜明瑞2, 苏海健1, 吴疆宇1, 葛云1, authorsList=王超, 蔚立元, 杜明瑞, 苏海健, 吴疆宇, 葛云, authorCompany=null, correspAuthors=蔚立元, authorNote=

王超(1996—),男,硕士研究生。

, correspAuthorsNote=
蔚立元(1982—),男,博士,教授。
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碳纳米管增强水泥净浆的动态力学特性
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王超 1 , 蔚立元 1 , 杜明瑞 2 , 苏海健 1 , 吴疆宇 1 , 葛云 1
硅酸盐学报 | 研究论文 2021,49(11): 2486-2493
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硅酸盐学报 |研究论文 2021 , 49 (11) : 2486 -2493
碳纳米管增强水泥净浆的动态力学特性
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王超1 , 蔚立元1 , 杜明瑞2, 苏海健1, 吴疆宇1, 葛云1
作者信息
  • 1.中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏 徐州 221116
  • 2.郑州大学水利科学与工程学院,郑州 450001
通讯作者:
蔚立元(1982—),男,博士,教授。
作者简介:

王超(1996—),男,硕士研究生。

Dynamic Mechanical Properties of Carbon Nanotubes Enhanced Cement Paste
Chao WANG1 , Liyuan YU1 , Mingrui DU2, Haijian SU1, Jiangyu WU1, Yun GE1
Affiliations
  • 1.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
  • 2.School of Water Conservancy Engineering, Zhengzhou University of Science and Technology, Zhengzhou, 450001, China
  • Corresponding Author:
    YU Liyuan (1982-), male, Ph. D., Professor. E-mail:

    WANG Chao (1996-), male, Master candidate. E-mail:

出版时间: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20200941
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利用分离式Hopkinson压杆(SHPB)装置对不同掺量(占水泥的质量分数)碳纳米管(CNTs)的水泥净浆试样在冲击荷载下的动力学特性展开研究,并利用扫描电子显微镜揭示了含CNTs水泥净浆的微观形貌特征。结果表明:在恒定冲击荷载下,试样的动态抗压强度、弹性模量和峰值韧度均随CNTs掺量的增加呈现出先增加后减小的趋势;CNTs掺量为0.1%时,三者达到最大值,与空白对照试样相比,其增幅分别为34.1%、70.0%和15.4%;试样的破坏程度表现出相反的变化规律,0.1%CNTs掺量的试样破碎程度最低,分形维数较空白试样减小了22.3%;适量的CNTs可改善水泥基体的孔径分布,对孔洞、裂缝进行填充与桥接,使其更加致密,但当其掺量过高极易发生团聚,降低基体的力学性能。

碳纳米管  /  水泥净浆  /  Hopkinson压杆  /  动态力学特性  /  微观结构

The dynamic characteristics of cement paste samples with different contents (mass ratio to cement) of carbon nanotubes (CNTs) under impact loads were investigated by a split Hopkinson pressure bar (SHPB) apparatus, and the microscopic characteristics of cement paste with CNTs were revealed by scanning electron microscopy. The results show that the dynamic compressive strength, elastic modulus and peak toughness of the samples all firstly increase and then decrease with the increase of CNTs content. When the CNTs content is 0.10%, the three samples reach the maximum values, and the increments are 34.1%, 70.0%, and 15.4%, respectively. However, the damage degree of the sample shows an opposite change law. The sample with 0.10% CNTs content has the lowest degree of crushing, and the fractal dimension is reduced by 22.3%, compared to the blank sample. Adding an appropriate amount of CNTs can improve the pore size distribution of cement matrix, and fill and bridge pores and cracks to make it denser, but the excessive amount of CNTs addition can cause aggregation and deteriorate the mechanical properties of cement-based composites.

carbon nanotubes  /  cement paste  /  split Hopkinson pressure bar  /  dynamic mechanical properties  /  microstructure
王超, 蔚立元, 杜明瑞, 苏海健, 吴疆宇, 葛云. 碳纳米管增强水泥净浆的动态力学特性. 硅酸盐学报, 2021 , 49 (11) : 2486 -2493 . DOI: 10.14062/j.issn.0454-5648.20200941
Chao WANG, Liyuan YU, Mingrui DU, Haijian SU, Jiangyu WU, Yun GE. Dynamic Mechanical Properties of Carbon Nanotubes Enhanced Cement Paste[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2486 -2493 . DOI: 10.14062/j.issn.0454-5648.20200941
  • 国家自然科学基金项目(52179118; 51908515; 4277240)
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2021年第49卷第11期
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doi: 10.14062/j.issn.0454-5648.20200941
  • 接收时间:2020-12-21
  • 首发时间:2026-10-30
  • 出版时间:2021-11-20
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  • 收稿日期:2020-12-21
  • 修回日期:2021-02-20
基金
国家自然科学基金项目(52179118; 51908515; 4277240)
作者信息
    1.中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏 徐州 221116
    2.郑州大学水利科学与工程学院,郑州 450001

通讯作者:

蔚立元(1982—),男,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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