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Effect of Preferential Adsorption on Dispersing Performance of Phosphate-Containing Superplasticizer in Cement-Microcline Powder Paste
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Xin SHU1, Yonglin MAO1, Qianqian ZHANG1, Yong YANG1, Dongliang ZHOU1, Tao WANG1, Qianping RAN2
Journal of the Chinese Ceramic Society | 2023, 51(5) : 1126 - 1135
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Journal of the Chinese Ceramic Society | 2023, 51(5): 1126-1135
• Research Articles •
Effect of Preferential Adsorption on Dispersing Performance of Phosphate-Containing Superplasticizer in Cement-Microcline Powder Paste
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Xin SHU1, Yonglin MAO1, Qianqian ZHANG1, Yong YANG1, Dongliang ZHOU1, Tao WANG1, Qianping RAN2
Affiliations
  • 1.State Key Laboratory of High-Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China
  • 2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

    • SHU Xin (1987-), male, Ph. D., Professor. E-mail:

About Author:

SHU Xin (1987-), male, Ph. D., Professor. E-mail:

Published: 2023-05-20 doi: 10.14062/j.issn.0454-5648.20220821
Outline
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The performance of polycarboxylate (PCE) superplasticizer in concrete with machine-made sand greatly depends on the adsorption behavior on stone powder, which is concerned with the lithology and specific surface area. The workability can be improved via enhancing the adsorption of PCE on stone powder. In this regard, the rheological behavior of cement paste and cement/microcline paste with conventional PCE superplasticizer and phosphate-containing PCE superplasticizer was tested. The incorporation of phosphate group can enhance the adsorption of PCE molecule on the surface of microcline, thus improving the packing density of cement/microcline mixture. The average particle separation distance increases. Therefore, the dispersing performance of PCE superplasticizer in the mixture is obviously improved. The apparent viscosity of paste is reduced. The performance of phosphate-containing superplasticizer is even better when incorporating high content of microcline.

preferential adsorption  /  phosphate-containing superplasticizer  /  microcline powder  /  cement paste  /  dispersing
舒鑫, 毛永琳, 张倩倩, 杨勇, 周栋梁, 王涛, 冉千平. 选择性吸附对含磷酸基减水剂在水泥-微斜长石粉浆体中分散性能的影响. 硅酸盐学报, 2023 , 51 (5) : 1126 -1135 . DOI: 10.14062/j.issn.0454-5648.20220821
Xin SHU, Yonglin MAO, Qianqian ZHANG, Yong YANG, Dongliang ZHOU, Tao WANG, Qianping RAN. Effect of Preferential Adsorption on Dispersing Performance of Phosphate-Containing Superplasticizer in Cement-Microcline Powder Paste[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (5) : 1126 -1135 . DOI: 10.14062/j.issn.0454-5648.20220821
Appendix
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Year 2023 volume 51 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20220821
  • Receive Date：2022-09-30
  • Online Date：2026-10-20
  • Published：2023-05-20
Article Data
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History
  • Received：2022-09-30
  • Revised：2022-10-08
Funding
Affiliations
    1.State Key Laboratory of High-Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China
    2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

Corresponding:

RAN Qianping (1973-), male, Ph. D., 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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