Publicação
Numerical simulation of salt decay in masonry: evaluation of potential influencing factors
| Resumo: | Salt decay is a significant problem in the preservation of masonry structures. In order to understand and simulate the process of salt deterioration in porous masonry materials, it is crucial to identify and measure the key influencing parameters that affect the deterioration process. In this study, we investigated the factors that must be experimentally measured and used as input parameters in numerical simulation models such as the moisture storage function and vapour permeability. A coupled multiphase model is presented and validated through twodifferent experimental campaigns namely capillary uptake test and drying process. We showed that the accuracy of the numerical simulation is highly dependent on these parameters. |
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| Autores principais: | Nazerigivi, Amin |
| Outros Autores: | Vasconcelos, Graça; Ghiassi, Bahman; Dionísio, Amélia |
| Assunto: | Salt crystallization Multiphase model Deterioration mechanisms Input parameter Engenharia e Tecnologia::Engenharia Civil Cidades e comunidades sustentáveis |
| Ano: | 2023 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Salt decay is a significant problem in the preservation of masonry structures. In order to understand and simulate the process of salt deterioration in porous masonry materials, it is crucial to identify and measure the key influencing parameters that affect the deterioration process. In this study, we investigated the factors that must be experimentally measured and used as input parameters in numerical simulation models such as the moisture storage function and vapour permeability. A coupled multiphase model is presented and validated through twodifferent experimental campaigns namely capillary uptake test and drying process. We showed that the accuracy of the numerical simulation is highly dependent on these parameters. |
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