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Effect of Calcium Silicate Hydrate/Citric Acid Nanocomposites on Hydration of Portland Cement
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Haiyan LI1, Jiyou CHEN1, Longyue YANG1, Xuemao GUAN1, Wenyan BI2
Journal of the Chinese Ceramic Society | 2022, 50(8) : 2182 - 2189
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Journal of the Chinese Ceramic Society | 2022, 50(8): 2182-2189
• Research Articles •
Effect of Calcium Silicate Hydrate/Citric Acid Nanocomposites on Hydration of Portland Cement
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Haiyan LI1, Jiyou CHEN1, Longyue YANG1, Xuemao GUAN1, Wenyan BI2
Affiliations
  • 1.School of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China
  • 2.School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China

    • LI Haiyan (1983-), female, Ph.D., Associate Professor. E-mail:

About Author:

LI Haiyan (1983-), female, Ph.D., Associate Professor. E-mail:

Published: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20220160
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Nano-sized calcium silicate hydrate (CSH) is an efficient nucleating agent for Portland cement, which can improve the early strength. In this paper, CSH/citric acid nanocomposites were prepared via nucleation and growth isolation with citric acid as a dispersion stabilizer at different citric acid concentrations. Effect of citric acid dosage on the structure and particle size distribution of CSH/citric acid nanocomposites (nano-CCNs) as well as the properties of Portland cement was investigated. The results show that citric acid can intercalate on the CSH, and the average particle size of nano-CCNs is between 90-160 nm. The higher the content of citric acid in nano-CCNs, the smaller the particle size and the more citric acid released in the alkaline solution at pH=13. Nano-CCNs accelerates the cement hydration, modifies the pore structure and increases the compressive strength of the cement (12 h, 1 d, 3 d, 7 d, 28 d) due to the synergy between the nanocrystal nucleus and citric acid released from the CCNs.

nanocomposites  /  calcium silicate hydrate  /  citric acid  /  synergistic effect  /  nucleation seeding
李海艳, 陈继友, 杨龙跃, 管学茂, 毕文彦. 水化硅酸钙/柠檬酸纳米复合物对水泥水化硬化作用的影响机理. 硅酸盐学报, 2022 , 50 (8) : 2182 -2189 . DOI: 10.14062/j.issn.0454-5648.20220160
Haiyan LI, Jiyou CHEN, Longyue YANG, Xuemao GUAN, Wenyan BI. Effect of Calcium Silicate Hydrate/Citric Acid Nanocomposites on Hydration of Portland Cement[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2182 -2189 . DOI: 10.14062/j.issn.0454-5648.20220160
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Year 2022 volume 50 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20220160
  • Receive Date：2022-03-02
  • Online Date：2026-10-20
  • Published：2022-08-20
Article Data
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History
  • Received：2022-03-02
  • Revised：2022-03-18
Funding
Affiliations
    1.School of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China
    2.School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China

Corresponding:

BI Wenyan (1978-), female, Ph.D., Lecturer. 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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