Bonjour à toutes et tous
Je travaille sur une étude d'un mur ancien sujet aux remontées capillaires. Je souhaite donc simuler une humidité au sein de la couche concernée par ces remontées capillaires.
Je veux mettre en place une charge d'humidité pour simuler ces remontées capillaires. Seul problème : je ne trouve aucune bibliographie sur la quantité d'eau transitant à travers un mur de manière annuelle pour pouvoir intégrer une valeur dans mon calcul.
J'ai bien fait appel à l'IA pour estimer une valeur mais elle me parait disproportionnée et j'aimerai pouvoir m'appuyer sur des données fiables.
Savez-vous où trouver/calculer ça ?
Merci d'avance !
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Hello !
I'm working on a study of an ancient wall subject to hair lifts. I therefore wish to simulate a moisture within the layer concerned by these hair lifts.
I want to set up a moisture load to simulate these hair lifts. Only problem: I find no bibliography on the amount of water passing through a wall annually to be able to integrate a value in my calculation.
I have used AI to estimate a value but it seems disproportionate to me and I would like to be able to rely on reliable data.
Do you know where to find/calculate this?
Thanks in advance!
Remontées capillaires - Moisture load in layer
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Guillaume Axoé
- WUFI User
- Posts: 8
- Joined: Thu Jan 09, 2025 4:56 am -1100
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Christian Bludau
- WUFI SupportTeam IBP
- Posts: 1276
- Joined: Tue Jul 04, 2006 10:08 pm -1100
- Location: IBP Holzkirchen, the home of WUFI
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Re: Remontées capillaires - Moisture load in layer
Dear Guillaume,
for rising capillary moisture there is, to my knowledge, no generally applicable characteristic value (e.g. in kg/m²·a), as the amount of transported water strongly depends on the pore structure of the material, the pore size distribution, and the degree of saturation.
As a simplified approach, you could use WUFI Pro to estimate an upper bound: for example, you may simulate a wall where one side is permanently in contact with water and evaluate the resulting moisture uptake for the specific material. This can give you an indication of the relevant moisture level.
However, please note that this type of problem is not ideally represented in a 1D approach. A more appropriate method would be to use WUFI 2D, where the capillary transport from the ground into the wall can be modeled more realistically and directly.
Christian
for rising capillary moisture there is, to my knowledge, no generally applicable characteristic value (e.g. in kg/m²·a), as the amount of transported water strongly depends on the pore structure of the material, the pore size distribution, and the degree of saturation.
As a simplified approach, you could use WUFI Pro to estimate an upper bound: for example, you may simulate a wall where one side is permanently in contact with water and evaluate the resulting moisture uptake for the specific material. This can give you an indication of the relevant moisture level.
However, please note that this type of problem is not ideally represented in a 1D approach. A more appropriate method would be to use WUFI 2D, where the capillary transport from the ground into the wall can be modeled more realistically and directly.
Christian