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Rheology and Strength of Silane Modified Ultra-High Performance Concrete
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Chuanxi LI1, 2, Shengjie WANG2, Yuhang XIA2, Huaiyu ZHANG3, Xiaoping LIAO3, Dacheng HUANG3
Journal of the Chinese Ceramic Society | 2023, 51(11) : 2914 - 2923
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Journal of the Chinese Ceramic Society | 2023, 51(11): 2914-2923
• Research Articles •
Rheology and Strength of Silane Modified Ultra-High Performance Concrete
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Chuanxi LI1, 2, Shengjie WANG2, Yuhang XIA2, Huaiyu ZHANG3, Xiaoping LIAO3, Dacheng HUANG3
Affiliations
  • 1.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China
  • 2.College of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
  • 3.Hunan Expressway Group Co., Ltd, Changsha 410003, China

    • LI Chuanxi (1963-), male, Ph. D., Professor. E-mail:

About Author:

LI Chuanxi (1963-), male, Ph. D., Professor. E-mail:

Published: 2023-08-15 doi: 10.14062/j.issn.0454-5648.20230217
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To reduce the viscosity and promote the workability of ultra-high performance concrete (UHPC), this paper selected aminosilane (KH550) with a hydrophilic functional group as auxiliary admixtures for UHPC mixtures. The effects of the mixture ratio and dosage of hydrolyzed silane on the mechanical properties and rheology of UHPC were investigated. The silane modification mechanism of UHPC was discussed. The results show that KH550 is suitable for hydrolysis in the mixed solvent of anhydrous ethanol and deionized water (or tap water). The optimum hydrolysis ratio (mass ratio) is determined as m1 (KH550): m2 (deionized water or tap water): m3 (anhydrous ethanol)=1.0∶3.0∶(2.5-5.0). The hydrolysis process is carried out under stirring for 3 min and hydrolyzed for more than 2 h. The optimum silane content in UHPC (calculated according to a mass ratio with silica fume in UHPC) is 1%. The Bingham model can be used to describe the rheological behavior of fresh UHPC modified by hydrolyzed silane. The rheological properties of fresh UHPC modified by hydrolyzed silane are improved, but the effect on the mechanical properties is ignored.

ultra high performance concrete  /  silane  /  hydrolysis mix proportion  /  rheology  /  mechanical performance
李传习, 王圣杰, 夏雨航, 张怀宇, 廖小平, 黄大成. 硅烷改性超高性能混凝土的流变性和强度. 硅酸盐学报, 2023 , 51 (11) : 2914 -2923 . DOI: 10.14062/j.issn.0454-5648.20230217
Chuanxi LI, Shengjie WANG, Yuhang XIA, Huaiyu ZHANG, Xiaoping LIAO, Dacheng HUANG. Rheology and Strength of Silane Modified Ultra-High Performance Concrete[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (11) : 2914 -2923 . DOI: 10.14062/j.issn.0454-5648.20230217
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Year 2023 volume 51 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20230217
  • Receive Date：2023-04-03
  • Online Date：2026-10-19
  • Published：2023-08-15
Article Data
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History
  • Received：2023-04-03
  • Revised：2023-04-14
Funding
Affiliations
    1.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China
    2.College of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
    3.Hunan Expressway Group Co., Ltd, Changsha 410003, 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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