{"title":"多孔介质中的电扩散","authors":"A. Aït-Mokhtar, O. Millet, O. Amiri","doi":"10.1080/17747120.2007.9692958","DOIUrl":null,"url":null,"abstract":"ABSTRACT A macroscopic modelling of the chloride transport through saturated cement-based materials is carried out by using the periodic homogenization technique. The dimensional analysis of Nernst-Planck equation leads to dimensionless parameters characterizing the problem. Given the electrical field applied in the experimental validation, the asymptotic expansion of Nernst-Planck equation leads to a macroscopic model only involving migration. From this analysis, a classical experimental procedure allows obtaining the homogenized diffusion coefficient.","PeriodicalId":368904,"journal":{"name":"Revue Européenne de Génie Civil","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrodiffusion in porous media\",\"authors\":\"A. Aït-Mokhtar, O. Millet, O. Amiri\",\"doi\":\"10.1080/17747120.2007.9692958\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT A macroscopic modelling of the chloride transport through saturated cement-based materials is carried out by using the periodic homogenization technique. The dimensional analysis of Nernst-Planck equation leads to dimensionless parameters characterizing the problem. Given the electrical field applied in the experimental validation, the asymptotic expansion of Nernst-Planck equation leads to a macroscopic model only involving migration. From this analysis, a classical experimental procedure allows obtaining the homogenized diffusion coefficient.\",\"PeriodicalId\":368904,\"journal\":{\"name\":\"Revue Européenne de Génie Civil\",\"volume\":\"42 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Revue Européenne de Génie Civil\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/17747120.2007.9692958\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revue Européenne de Génie Civil","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/17747120.2007.9692958","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
ABSTRACT A macroscopic modelling of the chloride transport through saturated cement-based materials is carried out by using the periodic homogenization technique. The dimensional analysis of Nernst-Planck equation leads to dimensionless parameters characterizing the problem. Given the electrical field applied in the experimental validation, the asymptotic expansion of Nernst-Planck equation leads to a macroscopic model only involving migration. From this analysis, a classical experimental procedure allows obtaining the homogenized diffusion coefficient.