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Effect of Seawater on Hydration of Calcium Aluminate Cement with Different Mineral Compositions
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Zhongping WANG1, 2, Xiang PENG1, Yating ZHAO1, Linglin XU1, 2, Guizhi DIAO3, Guanghua LIU3
Journal of the Chinese Ceramic Society | 2020, 48(8) : 1240 - 1248
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Journal of the Chinese Ceramic Society | 2020, 48(8): 1240-1248
• Research Articles •
Effect of Seawater on Hydration of Calcium Aluminate Cement with Different Mineral Compositions
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Zhongping WANG1, 2, Xiang PENG1, Yating ZHAO1, Linglin XU1, 2, Guizhi DIAO3, Guanghua LIU3
Affiliations
  • 1.School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
  • 2.Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, China
  • 3.China Building Materials Academy, Beijing 100024, China
  • WANG Zhongping (1960-), male, Ph. D, Professor. E-mail:

About Author:

WANG Zhongping (1960-), male, Ph. D, Professor. E-mail:

Published: 2020-08-20 doi: 10.14062/j.issn.0454-5648.20190848
Outline
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Calcium aluminate cement (CAC) has a superior resistance to seawater erosion. In order to further develop the application potential of CAC in marine environment, the effect of seawater on the hydration of CAC with different calcium monoaluminate/calcium dialuminate (CA/CA2) ratios was investigated. The results show that in the early hydration stage, seawater retards the hydration of CAC, and the lower the CA/CA2 ratio is, the more significant the retarding would be. In the late hydration stage, seawater promotes the hydration of CAC, and the amount of monocalcium aluminate decahydrate (CAH10) in the paste increases and the pore structure optimizes, resulting in a prominent increase in the CAC strength, compared to that mixed with tap water. Moreover, a lower CA/CA2 ratio leads to a more improvement of the CAC strength. However, compared to tap water, the compressive strength of CAC strength decreases in the late stage when the CAC is mixed with seawater. Regardless of mixing with tap water or seawater, CAH10 is the main hydration product of CAC, and chloride ions are mainly bound by the physical adsorption. No hydration products related to sulfate and magnesium attack appear.

calcium aluminatecement  /  calcium monoaluminate/calcium dialuminateratio  /  seawater  /  strength  /  monocalcium aluminate decahydrate
王中平, 彭相, 赵亚婷, 徐玲琳, 刁桂芝, 刘光华. 海水对不同矿物组成的铝酸盐水泥水化的影响. 硅酸盐学报, 2020 , 48 (8) : 1240 -1248 . DOI: 10.14062/j.issn.0454-5648.20190848
Zhongping WANG, Xiang PENG, Yating ZHAO, Linglin XU, Guizhi DIAO, Guanghua LIU. Effect of Seawater on Hydration of Calcium Aluminate Cement with Different Mineral Compositions[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (8) : 1240 -1248 . DOI: 10.14062/j.issn.0454-5648.20190848
Year 2020 volume 48 Issue 8
30
8
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Article Info
doi: 10.14062/j.issn.0454-5648.20190848
  • Receive Date:2019-12-23
  • Online Date:2026-10-29
  • Published:2020-08-20
Article Data
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History
  • Received:2019-12-23
  • Revised:2020-02-20
Funding
Affiliations
    1.School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
    2.Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, China
    3.China Building Materials Academy, Beijing 100024, China

Corresponding:

XU Linglin (1986-), female, Ph. D, Associate 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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