A multiphase micromechanical model for unsaturated concrete repaired by electrochemical deposition method with the bonding effects
| Autor: | Zhengwu Jiang, Timon Rabczuk, Zhiguo Yan, Haoxin Li, Jiann-Wen Woody Ju, Qing Chen, Hehua Zhu |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Mechanical Engineering 0211 other engineering and technologies Computational Mechanics 02 engineering and technology Electrochemistry Micromechanical model 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 021105 building & construction Deposition (phase transition) General Materials Science Composite material |
| Zdroj: | International Journal of Damage Mechanics. 27:1307-1324 |
| ISSN: | 1530-7921 1056-7895 |
| DOI: | 10.1177/1056789518773633 |
| Popis: | Most concrete structures repaired by the electrochemical deposition method are not fully saturated and the healing interfaces are not always perfect in reality. To demonstrate these issues, micromechanical models are presented for unsaturated concrete repaired by electrochemical deposition method with the healing interfacial transition zone based on our latest work. The repaired unsaturated concrete is represented as a multiphase composite made up of the water, unsaturated pores, intrinsic concrete, deposition products and the healing interfacial transition zone between the latter two components. The equivalent particle, matrix and composite for repaired unsaturated concrete are obtained by modifying the differential-scheme and the generalized self-consistent method. Modifications are utilized to rationalize the differential-scheme based estimations by taking into the water (including further hydration and viscosity effects), interfacial transition zone and the shapes of the pores into considerations. Furthermore, our predictions are compared with those of the existing models and available experimental results, thus illustrating the feasibility and capability of the proposed micromechanical framework. |
| Databáze: | OpenAIRE |
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