A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modelling of chloride transport in non-saturated concrete : from microscale to macroscale
A model for chloride transport in concrete is proposed. The model accounts for transport several transport mechanisms such as diffusion, advection, migration, etc. This work shows the chloride transport equations at the macroscopic scale in non-saturated concrete. The equations involve diffusion, migration, capillary suction, chloride combination and precipitation mechanisms. The material is assumed to be infinitely rigid, though the porosity can change under influence of chloride binding and precipitation. The involved microscopic and macroscopic properties of the materials are measured by standardized methods. The variables which must be imposed on the boundaries are temperature, relative humidity and chloride concentration. The output data of the model are the free, bound, precipitated and total chloride ion concentrations, as well as the pore solution content and the porosity. The proposed equations are solved by means of the finite element method (FEM) implemented in MATLAB (classical Galerkin formulation and the streamline upwind Petrov-Galerkin (SUPG) method to avoid spatial instabilities for advection dominated flows).
Modelling of chloride transport in non-saturated concrete : from microscale to macroscale
A model for chloride transport in concrete is proposed. The model accounts for transport several transport mechanisms such as diffusion, advection, migration, etc. This work shows the chloride transport equations at the macroscopic scale in non-saturated concrete. The equations involve diffusion, migration, capillary suction, chloride combination and precipitation mechanisms. The material is assumed to be infinitely rigid, though the porosity can change under influence of chloride binding and precipitation. The involved microscopic and macroscopic properties of the materials are measured by standardized methods. The variables which must be imposed on the boundaries are temperature, relative humidity and chloride concentration. The output data of the model are the free, bound, precipitated and total chloride ion concentrations, as well as the pore solution content and the porosity. The proposed equations are solved by means of the finite element method (FEM) implemented in MATLAB (classical Galerkin formulation and the streamline upwind Petrov-Galerkin (SUPG) method to avoid spatial instabilities for advection dominated flows).
Modelling of chloride transport in non-saturated concrete : from microscale to macroscale
Fenaux, Michiel (author) / Reyes Pozo, Encarnación (author) / Moragues Terrades, Amparo (author) / Gálvez Ruiz, Jaime (author)
2013-03-01
Fracture mechanics of concrete and concrete structures : proceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-8), held in Toledo, Spain, 11-14 March 2013 | 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures (FraMCoS-8) | 11/03/2013-14/03/2013 | Toledo (España)
Conference paper
Electronic Resource
English
DDC:
690
From microscale to macroscale in constitutive modelling in consolidation of clay
| British Library Conference Proceedings | 2005
Rock slope stability from microscale to macroscale level
| British Library Conference Proceedings | 2004
Micaceous Sands: Microscale Mechanisms and Macroscale Response
| British Library Online Contents | 2007
Micaceous Sands: Microscale Mechanisms and Macroscale Response
| Online Contents | 2007
Towards Greener Riprap: Environmental Considerations from Microscale to Macroscale
| British Library Conference Proceedings | 1995