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Cement Concrete Properties under Low Atmospheric Pressures-A Short Review
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Xu LIU1, Xin CHEN1, Bo TIAN1, 2, Lihui LI2, Yong GE1
Journal of the Chinese Ceramic Society | 2021, 49(8) : 1743 - 1752
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Journal of the Chinese Ceramic Society | 2021, 49(8): 1743-1752
• Research Article •
Cement Concrete Properties under Low Atmospheric Pressures-A Short Review
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Xu LIU1, Xin CHEN1, Bo TIAN1, 2, Lihui LI2, Yong GE1
Affiliations
  • 1.School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
  • 2.Research Institute of Highway, Ministry of Transport, Beijing 100088, China

    • LIU Xu (1996-), female, Doctoral candidate. E-mail:

About Author:

LIU Xu (1996-), female, Doctoral candidate. E-mail:

Published: 2021-08-20 doi: 10.14062/j.issn.0454-5648.20200922
Outline
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The properties of cement concrete at low atmospheric pressures (LAP) were reviewed, including the foaming performance of air-entraining agent solution, air content and pore structure of concrete, concrete strength and concrete shrinkage. The effective power of the concrete mixer at LAP was reduced, so that the mixing quality of fresh concrete was adversely affected. The effect of LAP on the air content and pore structure of concrete was dependent on the type of the air-entraining agent. LAP has little effect on the air content and pore structure of concrete in the presence of a good air-entraining agent and the maintaining of mixing quality control. Moreover, LAP can detrimentally affect the mechanical and shrinkage properties of concrete. However, the mechanical properties of the well-cured concrete cannot be deteriorated at LAP. In addition, the problems mentioned in the literatures and the corresponding solutions were also discussed.

concrete  /  pore structure  /  shrinkage  /  air-entraining agent  /  low atmospheric pressure
刘旭, 陈歆, 田波, 李立辉, 葛勇. 低气压环境下水泥混凝土性能研究进展. 硅酸盐学报, 2021 , 49 (8) : 1743 -1752 . DOI: 10.14062/j.issn.0454-5648.20200922
Xu LIU, Xin CHEN, Bo TIAN, Lihui LI, Yong GE. Cement Concrete Properties under Low Atmospheric Pressures-A Short Review[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (8) : 1743 -1752 . DOI: 10.14062/j.issn.0454-5648.20200922
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Year 2021 volume 49 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200922
  • Receive Date：2020-12-16
  • Online Date：2026-10-30
  • Published：2021-08-20
Article Data
Affiliations
History
  • Received：2020-12-16
  • Revised：2021-01-07
Funding
Affiliations
    1.School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
    2.Research Institute of Highway, Ministry of Transport, Beijing 100088, China

Corresponding:

GE Yong (1962-), male, Ph.D., Professor. E-mail:
CHEN Xin (1991-), male, Master, Engineer.
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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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