Mesoscale Simulation of Deformation for Mortar and Concrete under Cyclic Freezing and Thawing Stress

• Gong Fuyuan

  Lab of Engineering for Maintenance System, Graduate School of Engineering, Hokkaido University. Japan.

• Wang Yi

  Lab of Engineering for Maintenance System, Graduate School of Engineering, Hokkaido University. Japan.

• Zhang Dawei

  College of Civil Engineering and Architecture, Zhejiang University, China.

• Ueda Tamon

  Lab of Engineering for Maintenance System, Faculty of Engineering, Hokkaido University, Japan.

抄録

As one kind of porous medium, even without external loading, concrete material is still possible to be damaged by the internal pore pressures, such as hydraulic, crystallization and cryosuction pressures during freezing and thawing cycles (FTC). In this paper, a mesoscale model using Rigid Body Spring Method (RBSM) is developed to simulate the defor-mation behaviors of concrete under FTC cycles. On one hand, the macroscopic material is divided into small rigid ele-ments of mesoscale; on the other hand, the microscale internal pore pressures are regarded as average values in mesoscale based on poromechanical theories. The constitutive relation is also developed to reflect deformation compatibility be-tween porous body and ice-water system. Finally, the internal cracking and residual deformation are simulated for mortar and concrete using RBSM, which are found in a good agreement with previous experimental data.

収録刊行物

• Journal of Advanced Concrete Technology

  Journal of Advanced Concrete Technology 13 (6), 291-304, 2015-06-13

  公益社団法人 日本コンクリート工学会

キーワード

• General Materials Science
• Building and Construction

詳細情報

• CRID: 1390282680197708032
• NII論文ID: 130005078529
• DOI: 10.3151/jact.13.291
• ISSN: 13473913
• ISSN: 13468014
• Web Site: https://www.jstage.jst.go.jp/article/jact/13/6/13_291/_pdf
• 本文言語コード: en
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