Difference between revisions of "Powdering"
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| − | [[File:Powdering_ICOMOS.jpg|thumb|Powdering]] | + | [[File:Powdering_ICOMOS.jpg|thumb|Powdering<br> Photo: D. Bouchardon]] |
== Description == | == Description == | ||
| − | A type of stone degradation due to volume expansion associated to salt crystallization | + | A type of stone degradation due to volume expansion associated to salt crystallization. Powdering, or crumbling, of the stone occurs as the mechanical stress disrupts the porous matrix. Highly soluble salts, such as sodium chloride and sodium sulfate, can cause this effect. |
==Resources and Citations== | ==Resources and Citations== | ||
Latest revision as of 12:57, 22 October 2022
Description
A type of stone degradation due to volume expansion associated to salt crystallization. Powdering, or crumbling, of the stone occurs as the mechanical stress disrupts the porous matrix. Highly soluble salts, such as sodium chloride and sodium sulfate, can cause this effect.
Resources and Citations
- ICOMOS-ISCS: Illustrated glossary on stone deterioration patterns