Salt damage risk prediction for porous limestone
We present a model coupling heat, moisture and salt transport, salt crystallization, deformation and damage in porous building materials with the aim of predicting crystallization-induced damage. The model performance is illustrated by simulating the damage caused by sodium chloride crystallization...
| Main Author: | |
|---|---|
| Other Authors: | , , , |
| Format: | conferenceObject |
| Language: | eng |
| Published: |
2014
|
| Subjects: | |
| Online Access: | http://repositorio.lnec.pt:8080/jspui/handle/123456789/1006738 |
| Country: | Portugal |
| Oai: | oai:localhost:123456789/1006738 |
| Summary: | We present a model coupling heat, moisture and salt transport, salt crystallization, deformation and damage in porous building materials with the aim of predicting crystallization-induced damage. The model performance is illustrated by simulating the damage caused by sodium chloride crystallization in a porous limestone. The results are compared with experimental observations based on neutron and X-ray imaging, showing a good agreement. The effective stresses that can cause damage are the result of the crystallization pressure combined with a sufficient amount of precipitating salt crystals in a localized zone. |
|---|