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Constitutive Model and Failure Criteria of Alkali-Activated Concrete Under Confining Pressure
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Shan LIU1, Xiaobei SHI1, Yifei HAO2
Journal of the Chinese Ceramic Society | 2023, 51(8) : 1920 - 1927
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Journal of the Chinese Ceramic Society | 2023, 51(8): 1920-1927
• Research Articles •
Constitutive Model and Failure Criteria of Alkali-Activated Concrete Under Confining Pressure
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Shan LIU1, Xiaobei SHI1, Yifei HAO2
Affiliations
  • 1.Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300350, China
  • 2.Tianjin Key Laboratory of Prefabricated Buildings and Intelligent Construction, Hebei University of Technology, Tianjin 300400, China

    • LIU Shan (1995-), male, Doctoral candidate. E-mail:

About Author:

LIU Shan (1995-), male, Doctoral candidate. E-mail:

Published: 2023-04-28 doi: 10.14062/j.issn.0454-5648.20220845
Outline
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As a promising sustainable building material, alkali-activated concrete (AAC) is subjected to complex stresses. However, current investigations on the triaxial compression performance of AAC have restricted confinement ratios and do not account for specimen strength effects. In this work, conventional triaxial compression tests were conducted for AAC to investigate the damage mode, mechanical properties, constitutive model and failure criterion under confining pressure. The confinement ratio range is 0-1.4. The results show that the damage mode of AAC transforms from brittle to pseudo-ductile as the confining pressure increases. The triaxial compression strength increases significantly with AAC strength, attaining the deformation capacity with lower strength. A triaxial compression constitutive model available for Portland cement concrete (PCC) can substantially overestimate the axial strain of AAC at peak stress. Based on the experimental results, the triaxial compression constitutive model and failure criterion for AAC were proposed.

alkali-activated concrete  /  triaxial compression  /  constitutive model  /  failure criterion
刘杉, 石晓贝, 郝逸飞. 围压作用下碱激发混凝土的本构模型与破坏准则. 硅酸盐学报, 2023 , 51 (8) : 1920 -1927 . DOI: 10.14062/j.issn.0454-5648.20220845
Shan LIU, Xiaobei SHI, Yifei HAO. Constitutive Model and Failure Criteria of Alkali-Activated Concrete Under Confining Pressure[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (8) : 1920 -1927 . DOI: 10.14062/j.issn.0454-5648.20220845
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Year 2023 volume 51 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20220845
  • Receive Date：2022-10-08
  • Online Date：2026-10-19
  • Published：2023-04-28
Article Data
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History
  • Received：2022-10-08
  • Revised：2022-10-22
Funding
Affiliations
    1.Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300350, China
    2.Tianjin Key Laboratory of Prefabricated Buildings and Intelligent Construction, Hebei University of Technology, Tianjin 300400, China

Corresponding:

HAO Yifei (1985-), 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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