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Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete
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Zhongkun WANG1, Jie FAN2, Gengying LI1
Journal of the Chinese Ceramic Society | 2020, 48(10) : 1653 - 1658
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Journal of the Chinese Ceramic Society | 2020, 48(10): 1653-1658
Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete
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Zhongkun WANG1, Jie FAN2, Gengying LI1
Affiliations
  • 1.College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, China
  • 2.College of Civil Engineering, Guizhou Institute of Technology, Guiyang 550003, China

    • WANG Zhongkun (1989-), male, Doctoral candidate. E-mail:

About Author:

WANG Zhongkun (1989-), male, Doctoral candidate. E-mail:

Published: 2020-10-20 doi: 10.14062/j.issn.0454-5648.20200261
Outline
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Well-dispersive carbon nanotubes (CNTs)/polyvinyl alcohol (PVA) nano-colloidal emulsions were prepared based on the colloidal stability and interfacial chemistry. The effect of CNTs/PVA nano-colloidal emulsion on the mechanical properties, dry shrinkage and morphology of concrete was investigated. The results show that the 28 d compressive strength and flexural strength of concrete incorporating 0.3% (in mass fraction, the same below) CNTs and 1.0% PVA are increased by 10% and 15%, respectively, and the dry shrinkage rate of concrete containing 0.5% CNTs and 1.0% PVA after 7, 28, 180 d and 360 d curing is reduced by 76%, 34%, 22% and 21%, respectively, compared to the reference concrete. The effect of CNT-OH/PVA latex on the mechanical properties and dry shrinkage rate of concrete is attributed to the formation of CNTs/PVA interpenetrating networks in concrete, which prevents the concrete crack and refines the microstructure.

concrete  /  carbon nanotubes  /  polyvinyl alcohol  /  mechanical properties  /  dry shrinkage
王中坤, 范杰, 李庚英. 碳纳米管/聚乙烯醇对混凝土力学和干缩性能的影响. 硅酸盐学报, 2020 , 48 (10) : 1653 -1658 . DOI: 10.14062/j.issn.0454-5648.20200261
Zhongkun WANG, Jie FAN, Gengying LI. Influences of Carbon Nanotubes and Polyvinyl Alcohol Nano-Composites on Mechanical Properties and Dry Shrinkage of Concrete[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (10) : 1653 -1658 . DOI: 10.14062/j.issn.0454-5648.20200261
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Year 2020 volume 48 Issue 10
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Article Info
doi: 10.14062/j.issn.0454-5648.20200261
  • Receive Date：2020-04-13
  • Online Date：2026-10-29
  • Published：2020-10-20
Article Data
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History
  • Received：2020-04-13
  • Revised：2020-05-19
Funding
Affiliations
    1.College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, China
    2.College of Civil Engineering, Guizhou Institute of Technology, Guiyang 550003, China

Corresponding:

LI Gengying (1970-), female, 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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