Title:
Deterioration of Concrete in Swimming Pools in the South of Sweden
Author(s):
Satish Chandra and Leif Bernston
Publication:
Materials Journal
Volume:
85
Issue:
6
Appears on pages(s):
489-494
Keywords:
alkali-aggregate reactions; concretes; deterioration; feldspars; leaching; pyrite; salts; swimming pools; Materials Research
DOI:
10.14359/2232
Date:
11/1/1988
Abstract:
Concrete placed at the back lining of the glazed tiles in swimming pools made 15 years ago in the south of Sweden has shown damage. The concrete looked porous and tests showed that the strength of the concrete was not very high and its cement content was low. A systematic analysis of this concrete is done here. Alkali-silica reaction is reported to be the major cause of swimming pools' deterioration. Besides the alkali-silica reaction, tests showed the influence of sulfates forming ettringite and gypsum, leaching of pyrites, and disintegration of feldspar, as is shown by petrographical analysis. Thus, deterioration has occurred as a combined effect.