Escola Superior de Conservació i Restauració de Bés Culturals de Catalunya
Image from Google Jackets

Degradability of building stone: Influence of the porous network on the rate of dissolution of carbonate and evaporitic rocks

Contributor(s): CÁRDENES, Victor | MATEOS, Felix | PARADELO, RemigioMaterial type: ArticleArticleISBN: 1296-2074Subject(s): Acid corrosion | ICP-MS | Stoneworks | weathering | X-ray diffraction In: Journal of Cultural Heritage 3 14 2, 172Abstract: The susceptibility to weathearing of eleven carbonate and evaporitic Spanish building roks was studied by means of disssolution experiments. Mineralogy, petrology, geochenmistry and porosity of the rocks were also characterized in order to determine the potential relationship between these propertiesof the rocks and their dissolutions rates. Rocks slabs were submerged in a o.1 M HCL acid solution for 72 h and the amounts of Ca, mg and S released weremeasured, as well as the weight loss of stamples during yhe acid attack. Alabastes, wich presented very low porosity, were disolved to a lesser extent tan limestones and dolostones in the time of the experiment. A significant positive correlations was found for connected with the weight loss of the rocks during the disolution and with the kinetic rate of Ca dissolution. Overall, the results highlight the influence of the porous network in the degradability of building stones by controling their rate of dissoluolution. There is a positive correlation for all the rocks between weight loss along acidic attack and connected porosity, but no relationship between mineralogical and petrographical composition and suceptibility ro disolution.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Call number Status Date due Barcode
Article de revista Article de revista Biblioteca de l' Escola Superior Conservació i Restauració de Bens Culturals de Catalunya
Journal of Cultural Heritage 3 (Browse shelf(Opens below)) Available Art-62

The susceptibility to weathearing of eleven carbonate and evaporitic Spanish building roks was studied by means of disssolution experiments. Mineralogy, petrology, geochenmistry and porosity of the rocks were also characterized in order to determine the potential relationship between these propertiesof the rocks and their dissolutions rates. Rocks slabs were submerged in a o.1 M HCL acid solution for 72 h and the amounts of Ca, mg and S released weremeasured, as well as the weight loss of stamples during yhe acid attack. Alabastes, wich presented very low porosity, were disolved to a lesser extent tan limestones and dolostones in the time of the experiment. A significant positive correlations was found for connected with the weight loss of the rocks during the disolution and with the kinetic rate of Ca dissolution. Overall, the results highlight the influence of the porous network in the degradability of building stones by controling their rate of dissoluolution. There is a positive correlation for all the rocks between weight loss along acidic attack and connected porosity, but no relationship between mineralogical and petrographical composition and suceptibility ro disolution.

There are no comments on this title.

to post a comment.

Powered by Koha