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Influence of Hydroxyethyl Methyl Cellulose on Early Hydration of Calcium Sulfoaluminate Cement
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Kai WU1, Wang KANG1, Linglin XU1, HECKER Andreas2, LUDWIG Horst-Michael2, Peiming WANG1
Journal of the Chinese Ceramic Society | 2020, 48(5) : 615 - 621
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Journal of the Chinese Ceramic Society | 2020, 48(5): 615-621
Influence of Hydroxyethyl Methyl Cellulose on Early Hydration of Calcium Sulfoaluminate Cement
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Kai WU1, Wang KANG1, Linglin XU1, HECKER Andreas2, LUDWIG Horst-Michael2, Peiming WANG1
Affiliations
  • 1.School of Materials Science and Engineering, Tongji University, Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Shanghai 201804, China
  • 2.F.A. Finger Institute, Bauhaus University Weimar, Weimar 99421, Germany

    • WU Kai (1987-), male, Ph.D., Associate Professor. E-mail:

About Author:

WU Kai (1987-), male, Ph.D., Associate Professor. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.20190625
Outline
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The influence of hydroxyethyl methyl cellulose (HEMC) on the early hydration of Portland cement and rapid-hardening calcium sulfoaluminate cement (CSA) was investigated by acoustic and electroacoustic spectrometer and low-field NMR instrument. The water retention and air void content of fresh mortars were analyzed. The results show that regardless of cement variation, the water retention and air void content are improved after the addition of HEMC. The change of zeta potential is related to cement type. For the Portland cement paste, the addition of HEMC greatly shortens the time of zeta potential becoming electropositive, and the absolute value of ζ potential for rapid-hardening CSA paste decreases slightly. In addition, the T2 distribution of HEMC containing cement pastes also appears a relaxation peak at 100-1 000 ms. Such a peak disappears after 3-d hydration for the Portland cement, while it only disappears in 120 min for rapid-hardening CSA, indicating that HEMC exerts a weak adsorption on the surface of rapid-hardening CSA particles. Unlike the retardation effect of HEMC on the Portland cement hydration, HEMC hardly affects the early hydration heat release of rapid-hardening CSA.

calcium sulfoaluminate cement  /  cellulose ether  /  early hydration  /  transverse relaxation time  /  ζ potential
吴凯, 康旺, 徐玲琳, HECKER Andreas, LUDWIG Horst-Michael, 王培铭. 羟乙基甲基纤维素对硫铝酸盐水泥早期水化的影响. 硅酸盐学报, 2020 , 48 (5) : 615 -621 . DOI: 10.14062/j.issn.0454-5648.20190625
Kai WU, Wang KANG, Linglin XU, HECKER Andreas, LUDWIG Horst-Michael, Peiming WANG. Influence of Hydroxyethyl Methyl Cellulose on Early Hydration of Calcium Sulfoaluminate Cement[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 615 -621 . DOI: 10.14062/j.issn.0454-5648.20190625
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Year 2020 volume 48 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20190625
  • Receive Date：2019-09-11
  • Online Date：2026-10-29
  • Published：2020-05-20
Article Data
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History
  • Received：2019-09-11
  • Revised：2019-12-08
Funding
Affiliations
    1.School of Materials Science and Engineering, Tongji University, Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Shanghai 201804, China
    2.F.A. Finger Institute, Bauhaus University Weimar, Weimar 99421, Germany

Corresponding:

WANG Peiming (1952-), 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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