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Influences of Calcium Oxide-Magnesium Oxide Blended Expansive Agent and Temperature Rising Inhibitor on Hydration Characteristic of Early-Age Cement Paste
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Haitao ZHAO1, 2, Yu XIANG1, Jiaping LIU2, Xiaodong CHEN1, 3, Wen XU2, Hua LI2
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2509 - 2517
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2509-2517
• Research Article •
Influences of Calcium Oxide-Magnesium Oxide Blended Expansive Agent and Temperature Rising Inhibitor on Hydration Characteristic of Early-Age Cement Paste
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Haitao ZHAO1, 2, Yu XIANG1, Jiaping LIU2, Xiaodong CHEN1, 3, Wen XU2, Hua LI2
Affiliations
  • 1.College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
  • 2.College of Materials Science and Engineering, Southeast University, Nanjing 211189, China
  • 3.China Communications Construction Company Urban Investment Holding Co. Ltd, Guangzhou 510623, China

    • ZHAO Haitao(1978-), male, Ph. D., Associate Professor. E-mail:

About Author:

ZHAO Haitao(1978-), male, Ph. D., Associate Professor. E-mail:

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210042
Outline
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The effects of CaO-MgO blended expansive agent (CMEA) and temperature rising inhibitor (TRI) on the hydration of cement paste were investigated by low-field nuclear magnetic resonance spectroscopy. The results show that the transversal relaxation (T2) intensity increases in the dormant period and decreases in the steady period with the increase of CMEA content. The change of cement paste containing CMEA and TRI with CMEA content is similar to that of cement paste containing CMEA addition only. However, the duration of the acceleration period and deceleration period increase, and the hydration rate decrease evidently with increasing the TRI content. Moreover, curing temperature has an effect on the hydration with the combination of CMEA and TRI, and a high curing temperature promotes the dissolution and diffusion of TRI, resulting in a further decrease of hydration rate in the acceleration period.

calcium oxide-magnesium oxide blended expansive agent  /  temperature rising inhibitor  /  dual regulation  /  hydration  /  low-field nuclear magnetic resonance spectroscopy
赵海涛, 相宇, 刘加平, 陈晓东, 徐文, 李华. 钙镁膨胀剂和温升抑制剂对水泥浆体早龄期水化特性影响. 硅酸盐学报, 2021 , 49 (11) : 2509 -2517 . DOI: 10.14062/j.issn.0454-5648.20210042
Haitao ZHAO, Yu XIANG, Jiaping LIU, Xiaodong CHEN, Wen XU, Hua LI. Influences of Calcium Oxide-Magnesium Oxide Blended Expansive Agent and Temperature Rising Inhibitor on Hydration Characteristic of Early-Age Cement Paste[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2509 -2517 . DOI: 10.14062/j.issn.0454-5648.20210042
Appendix
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210042
  • Receive Date：2021-01-13
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
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History
  • Received：2021-01-13
  • Revised：2021-04-12
Funding
Affiliations
    1.College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
    2.College of Materials Science and Engineering, Southeast University, Nanjing 211189, China
    3.China Communications Construction Company Urban Investment Holding Co. Ltd, Guangzhou 510623, China

Corresponding:

LIU Jiaping(1967-), 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
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Genus		 种数
Number of
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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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