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Dissolution Kinetics of Tricalcium Silicate in Solution Containing Chloride or Magnesium Ions
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Qi LIU1, Pan FENG1, 2, Shaoxiong YE1, Song MU2, 3, Qianping RAN1, 2, 3
Journal of the Chinese Ceramic Society | 2021, 49(5) : 928 - 938
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Journal of the Chinese Ceramic Society | 2021, 49(5): 928-938
• Research Article •
Dissolution Kinetics of Tricalcium Silicate in Solution Containing Chloride or Magnesium Ions
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Qi LIU1, Pan FENG1, 2, Shaoxiong YE1, Song MU2, 3, Qianping RAN1, 2, 3
Affiliations
  • 1.Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
  • 2.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 210008, China
  • 3.Jiangsu Sobute New Materials Co. Ltd, Nanjing 211103, China

    • LIU Qi (1996-), female, Master candidate. E-mail:

About Author:

LIU Qi (1996-), female, Master candidate. E-mail:

Published: 2021-05-20 doi: 10.14062/j.issn.0454-5648.2021.08.03
Outline
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Effect of chloride and magnesium ions in seawater on the early dissolution of the major clinker in cement (i.e., tricalcium silicate, C3S) was investigated. The dissolution rates of tricalcium silicate in solutions containing chloride and/or magnesium ions at various concentrations were obtained through lab-made platform and inductively coupled plasma-optical emission spectroscopy. The influence of chloride and magnesium ions on the dissolution heat release of tricalcium silicate was investigated by isothermal calorimetry. The morphology of tricalcium silicate tablet during the dissolution process was determined by scanning electron microscopy. The results show that, chloride ion and magnesium ions both inhibit the dissolution of tricalcium silicate and the inhibiting effect of magnesium ion is more pronounced at a low ionic strength. Sodium chloride and magnesium chloride promote the dissolution of tricalcium silicate at a high ionic strength. The intense solvation of vast sodium and magnesium ions weakens the solvation effect of chloride ion in tricalcium silicate crystal and reduces the stability of water molecules in the solvation shell of chloride ion. Moreover, the presence of massive background ions accelerates the migration of water molecules in the vicinity of the crystal surface, thus promoting the dissolution of chloride ion.

tricalcium silicate  /  sea water  /  dissolution  /  chloride ion  /  magnesium ion  /  durability  /  concrete  /  marine engineering
刘琪, 冯攀, 叶少雄, 穆松, 冉千平. 硅酸三钙在含氯离子或镁离子溶液中的溶解动力学行为. 硅酸盐学报, 2021 , 49 (5) : 928 -938 . DOI: 10.14062/j.issn.0454-5648.2021.08.03
Qi LIU, Pan FENG, Shaoxiong YE, Song MU, Qianping RAN. Dissolution Kinetics of Tricalcium Silicate in Solution Containing Chloride or Magnesium Ions[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (5) : 928 -938 . DOI: 10.14062/j.issn.0454-5648.2021.08.03
Appendix
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Year 2021 volume 49 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.2021.08.03
  • Receive Date：2020-08-14
  • Online Date：2026-10-30
  • Published：2021-05-20
Article Data
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History
  • Received：2020-08-14
  • Revised：2020-09-13
Funding
Affiliations
    1.Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
    2.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 210008, China
    3.Jiangsu Sobute New Materials Co. Ltd, Nanjing 211103, China

Corresponding:

FENG Pan (1988-), female, Ph.D., Associate Professor. E-mail:
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Citations
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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