Saline fog is one of the main degradation causes of the built historical and recent heritage. The effect on natural stone is one of the main concerns of the producers and installers of these materials, whether caused by non-aesthetic aspects either by the economic implications that results in. In this study three Portuguese ornamental limestones currently commercialized and with great application in outdoor and indoor environments were used. The limestones commercial designations are Branco Valongo (BV), Gascoigne Beige (GB) and Moleanos (CRM). Samples with polished finishing were exposed to 60 cycles of salt spray. Mass variations were recorded before and after the test and the alterations in the surface were photographically recorded. The results compare the performance of these natural stones when subjected to the action of the salt mist.
|Title of host publication||Salt fog experiments on natural stone. The case of three Portuguese ornamental limestones|
|Publisher||International Conference on Engineering (ICEUBI2015)|
|Number of pages||8|
|Publication status||Published - 1 Dec 2015|
- saline fog
- natural stone