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Effect of Metakaolin on Rheological Properties and Fiber Distribution of Ultra-High Performance Concrete
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Xiaobo ZHENG1, 2, Fangyu HAN1, 2, Jianzhong LIU1, 2, Jianfang SHA1, 2, Wei LIN1, 2, Yun WAN1, 2
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2375 - 2383
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2375-2383
• Special Issue on Ultra-HiHh HerHorHance Concrete Ⅱ •
Effect of Metakaolin on Rheological Properties and Fiber Distribution of Ultra-High Performance Concrete
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Xiaobo ZHENG1, 2, Fangyu HAN1, 2, Jianzhong LIU1, 2, Jianfang SHA1, 2, Wei LIN1, 2, Yun WAN1, 2
Affiliations
  • 1.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 211103, China
  • 2.Jiangsu Sobute New Materials Co., Ltd, Nanjing 211103, China

    • ZHENG Xiaobo (1994-), male, Master, Engineer. E-mail:

About Author:

ZHENG Xiaobo (1994-), male, Master, Engineer. E-mail:

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210337
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The effect of metakaolin on rheological properties and fiber distribution in static state of ultra-high performance concrete (UHPC) paste with the same fluidity was investigated via rheological test, structural rebuilding rate test and image analysis technology, and the structural rebuilding rate was used to characterize the fiber dispersion properties. The results show that the yield stress of UHPC paste with the same fluidity is basically similar, but the apparent viscosity increases gradually with the increase of metakaolin content (i.e., 5%-10%), while the rheological behavior does not change. The addition of metakaolin can increase the structural rebuilding rate of UHPC paste, but the effect will weaken due to the increase of superplasticizers dosage. It is also indicated that the structural rebuilding rate is closely correlated to the fiber distribution. The higher the structural rebuilding rate is, the better the fiber dispersion will be.

metakaolin  /  ultra-high performance concrete paste  /  rheological property  /  structural rebuilding  /  fiber distribution
郑晓博, 韩方玉, 刘建忠, 沙建芳, 林玮, 万赟. 偏高岭土对超高性能混凝土流变及纤维分布的影响. 硅酸盐学报, 2021 , 49 (11) : 2375 -2383 . DOI: 10.14062/j.issn.0454-5648.20210337
Xiaobo ZHENG, Fangyu HAN, Jianzhong LIU, Jianfang SHA, Wei LIN, Yun WAN. Effect of Metakaolin on Rheological Properties and Fiber Distribution of Ultra-High Performance Concrete[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2375 -2383 . DOI: 10.14062/j.issn.0454-5648.20210337
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210337
  • Receive Date：2021-04-28
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
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History
  • Received：2021-04-28
  • Revised：2021-05-12
Funding
Affiliations
    1.State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 211103, China
    2.Jiangsu Sobute New Materials Co., Ltd, Nanjing 211103, China
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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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