CONCRETE PAVEMENTS

BETONSTRASSENBAU

After describing the processes in concrete during attack by frost the physical action of deicing salt is described under the combined attack of frost and deicing salt. Apart from the cooling shock received due to the withdrawal of heat from the concrete during the melting of the ice and the resulting further cooling of the lower concrete layers, the temperature stresses will have the effect of possible formation of micro-cracks. Added to this must be a further moisture ingress in the concrete, as salt solutions have smaller surface tensions. During later drying-out the crystallization pressure increases owing to separation of the salt crystals from over-saturated solutions. Chemical action of the deicing salt is only possible to a small extent, i.e. By washing out and by attack on reinforcing steel not covered by concrete. Besides the observance of all regulations for the production, working and curing of frost/salt resistant concrete, strict control is necessary. /TRRL/

  • Availability:
  • Corporate Authors:

    Konradin-Verlag Kohlhammer

    Ernst-May-Strasse 8
    D-7022 Lempelden,   Germany 
  • Authors:
    • Roesli, A
  • Publication Date: 1975

Language

  • German

Media Info

  • Pagination: p. 32-33
  • Serial:
    • Baupraxis
    • Volume: 27
    • Issue Number: 6
    • Publisher: Konradin-Verlag Kohlhammer
    • ISSN: 0005-6766

Subject/Index Terms

Filing Info

  • Accession Number: 00183630
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1978 12:00AM