The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA GEOLOGIA - Issue no. 1 / 2009  
         
  Article:   ACIDIC WEATHERING OF CARBONATE BUILDING STONES: EXPERIMENTAL ASSESSMENT (PRELIMINARY RESULTS).

Authors:  RYSZARD KRYZA, MARTA PRELL, FRANCISZEK CZECHOWSKI, MALGORZATA DOMARADZKA.
 
       
         
  Abstract:  Three types of carbonate rocks, travertine, limestone, and marble have been studied to determine their selected technical parameters (water absorption, resistance to salt crystallization damage) and reaction to experimentally modelled acid rain weathering, imitating the polluted urban atmospheric conditions. The acidic agents present in the natural acid rain precipitation, H2SO4, HCl, HNO3, CH3COOH, and the mixture of these acids (“Acid mix”), were tested. The initial stages of acid weathering involve, apart from chemical dissolution, particularly intense physical detachment of rock particles (granular disintegration) significantly contributing to the total mass loss. Travertine was found to be most prone to salt crystallization damage and to acid weathering, and these features should be taken into account especially in external architectural usage of this stone in cold climate conditions and polluted urban atmosphere.

Key words: building stones, travertine, limestone, marble, chemical weathering, acid rain, atmospheric pollution.
 
         
     
         
         
      Back to previous page