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Dynamic Mechanical Properties of Carbon Nanotubes Enhanced Cement Paste
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Chao WANG1, Liyuan YU1, Mingrui DU2, Haijian SU1, Jiangyu WU1, Yun GE1
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2486 - 2493
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2486-2493
• Research Article •
Dynamic Mechanical Properties of Carbon Nanotubes Enhanced Cement Paste
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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

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

About Author:

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

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20200941
Outline
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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
Appendix
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20200941
  • Receive Date：2020-12-21
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
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History
  • Received：2020-12-21
  • Revised：2021-02-20
Funding
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:

YU Liyuan (1982-), male, Ph. D., Professor. E-mail:
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表12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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