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1H Low-Field NMR Relaxation Characteristics of Hydration Process of White Cement Modified with Silica Nanoparticles
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Ai ZHANG, Yong GE
Journal of the Chinese Ceramic Society | 2021, 49(8) : 1662 - 1669
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Journal of the Chinese Ceramic Society | 2021, 49(8): 1662-1669
• Research Article •
1H Low-Field NMR Relaxation Characteristics of Hydration Process of White Cement Modified with Silica Nanoparticles
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Ai ZHANG, Yong GE
Affiliations
  • School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150000, China
  • ZHANG Ai (1992-), female, Doctoral candidate. E-mail:

About Author:

ZHANG Ai (1992-), female, Doctoral candidate. E-mail:

Published: 2021-08-20 doi: 10.14062/j.issn.0454-5648.20200878
Outline
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1H low-field nuclear magnetic resonance instrument was used to continuously monitor the changes in the transverse relaxation time of white cement with silica nanoparticles with different sizes (i.e., 15 nm, 50 nm and 100 nm) from adding water to hydration for 72 h. The effect of silica nanoparticles with different sizes on the hydration process of cement was investigated. The setting time of cement paste was measured using the Vicat apparatus. The results show that the crystal nucleation of silica nanoparticles can affect the early hydration process of cement, thus breaking the flocculation structure of cement paste due to the physical adsorption and pozzolanic reaction, reducing the number of macropores, and improving the uniformity of cement paste. In addition, the smaller the silica nano particles is, the less the free water content in hydration process and the shorter the setting time will be.

nano-silica  /  white cement  /  low-field nuclear magnetic resonance  /  transverse relaxation  /  hydration
张爱, 葛勇. 不同粒径纳米氧化硅改性白水泥水化过程的1H低场核磁弛豫特征. 硅酸盐学报, 2021 , 49 (8) : 1662 -1669 . DOI: 10.14062/j.issn.0454-5648.20200878
Ai ZHANG, Yong GE. 1H Low-Field NMR Relaxation Characteristics of Hydration Process of White Cement Modified with Silica Nanoparticles[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (8) : 1662 -1669 . DOI: 10.14062/j.issn.0454-5648.20200878
Year 2021 volume 49 Issue 8
25
6
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Article Info
doi: 10.14062/j.issn.0454-5648.20200878
  • Receive Date:2020-11-24
  • Online Date:2026-10-30
  • Published:2021-08-20
Article Data
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History
  • Received:2020-11-24
  • Revised:2021-01-29
Funding
Affiliations
    School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150000, China

Corresponding:

GE Yong (1962-), 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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