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Hybird Effect of Citric Acid and Polycarboxylate Superplasticizer on High Belite Calcium Sulphoaluminate Cement
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Ruifeng TANG, Ziming WANG, Mingzhang LAN, Suping CUI
Journal of the Chinese Ceramic Society | 2021, 49(5) : 893 - 900
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Journal of the Chinese Ceramic Society | 2021, 49(5): 893-900
• Research Article •
Hybird Effect of Citric Acid and Polycarboxylate Superplasticizer on High Belite Calcium Sulphoaluminate Cement
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Ruifeng TANG, Ziming WANG, Mingzhang LAN, Suping CUI
Affiliations
  • College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

    • TANG Ruifeng (1992-), male, Doctoral candidate. E-mail:

About Author:

TANG Ruifeng (1992-), male, Doctoral candidate. E-mail:

Published: 2021-05-20 doi: 10.14062/j.issn.0454-5648.20200681
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The hybrid effect of citric acid with polycarboxylate water-reducing agent (PCE) on the fluidity, setting time and mortar strength of high belite sulphoaluminate (HB-CSA) cement paste was investigated. The results show that citric acid with PCE prolongs the setting time of HB-CSA cement, but reduces the initial fluidity and early strength of the cement, and has no adverse effect on the later strength of the cement. The mechanism of citric acid with PCE to delay the early hydration of HB-CSA cement was analyzed by cement hydration microcalorimeter, X-ray diffractor and scanning electron microscope, and the adsorption behavior of citric acid with PCE in the early stage of hydration of HB-CSA cement was analyzed via organic carbon adsorption. It is indicated that the combined use of citric acid and PCE could delay the hydration heat release rate of the cement, inhibit the formation of ettringite, the early hydration product of cement, and change ettringite as a main hydration product of HB-CSA cement in the early stage. The morphology changes from rod-like or tubular to fine needle-like. The use of citric acid with PCE will produce a competitive adsorption in cement, thus reducing the effect of PCE dispersion in HB-CSA cement and cement fluidity.

citric acid  /  polycarboxylate superplasticizer  /  high belite calcium sulphoaluminate cement  /  ettringite  /  retardation  /  paste
唐芮枫, 王子明, 兰明章, 崔素萍. 柠檬酸与聚羧酸减水剂在高贝利特硫铝酸盐水泥中的复合效应. 硅酸盐学报, 2021 , 49 (5) : 893 -900 . DOI: 10.14062/j.issn.0454-5648.20200681
Ruifeng TANG, Ziming WANG, Mingzhang LAN, Suping CUI. Hybird Effect of Citric Acid and Polycarboxylate Superplasticizer on High Belite Calcium Sulphoaluminate Cement[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (5) : 893 -900 . DOI: 10.14062/j.issn.0454-5648.20200681
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Year 2021 volume 49 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20200681
  • Receive Date：2020-09-08
  • Online Date：2026-10-30
  • Published：2021-05-20
Article Data
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History
  • Received：2020-09-08
  • Revised：2020-10-09
Funding
Affiliations
    College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

Corresponding:

WANG Ziming (1963-), male, Ph.D., 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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