DURABILITY OF SURFACE TREATED CONCRETE . PROTECTION OF CONCRETE. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE HELD AT THE UNIVERSITY OF DUNDEE, SEPTEMBER 11-13, 1990

The permeabilities, to both air and water, of the surfaces of laboratory prepared specimens of concrete which had been coated with a range of sealants were measured at various ages using the 'Clam' a site portable, non destructive permeability testing equipment developed at The Queen's University of Belfast. The sealants used were mainly silane or silane based in combination with other materials. The prepared samples were then subjected to a regime of freeze/thaw testing to further assess the effectiveness of the coatings. it was found that the performance of the various materials was determined by the quality of the base concrete, that silane is an effective means of reducing low pressure water permeability if applied without an alcohol, and that to reduce air permeability, silane must be augmented with other material such as acrylic. Freeze/thaw performance was found to be closely related to surface water permeability and not to air permeability. From these results it is seen that the likely effectiveness of a sealant may be measured on site after application. (Author/TRRL)

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• Corporate Authors:

  E and F Spon Limited

  2-6 Boundary Road
  London,   England 
• Authors:
  • Basheer, PAM
  • MONTGOMERY, F R
  • LONG, A E
  • Batayneh, M
• Publication Date: 1990

Media Info

• Features: References;
• Pagination: p. 211-221
• Serial:
  • Publication of: E and F Spon Limited
  • Publisher: E and F Spon Limited

Subject/Index Terms

• TRT Terms: Concrete; Concrete structures; Conferences; Durability; Performance; Permeability; Protective coatings; Sealing compounds; Silane; Surface treating
• ITRD Terms: 4755: Concrete; 8525: Conference; 5252: Corrosion; 5910: Durability; 2577: Freezing thawing cycle; 6216: Non destructive testing; 6285: Penetration; 5921: Permeability; 9149: Prevention; 2973: Sealing coat (on top of the surfacing); 6255: Test
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 00619997
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: O-419-15490-6
• Files: ITRD, TRIS
• Created Date: Mar 31 1992 12:00AM