THE SKID RESISTANCE OF PORTLAND CEMENT CONCRETE ROAD SURFACES

BETONBELAEGNINGERS FRIKTIONSEGENSKABER

Skid resistance measurements conducted with the Road Laboratory's Stradograph have shown that the concrete surface of the Holback motorway, on a stretch of roadway where rain caused a surface exposure of the crushed coarse aggregate immediately after casting, had a high sideway force coefficient upon opening of the motorway. This test, as well as laboratory tests on durability and polishing undertaken on a variety of concrete specimens, indicate the possibilities of obtaining a concrete surface which posesses a good & durable macrostructure by exposing cressled coarse aggregate on the surface of the uncrushed concrete surface. Laboratory tests with the portable skid resistance tester indicate that rough textured concrete surfaces are relatively inferior to fine textured surfaces in comparison with comparable sideway force coefficients. It is suggested that for future investigations, a check should be made as to within other more suitable laboratory methods of measuring skid resistance exist which would be better suited for the purpose at hand. Also, to what extent the presently utilized Dorry machine can reproduce the wear and polishing resulting from the actual effects of traffic.

• Corporate Authors:

  National Road Research Laboratory, Denmark

  Elisa Gaardsvij 5, P.O. Box 235
  Roskilde 4000,   Denmark 
• Authors:
  • Bohn, A O
  • Nielsen, U R
  • Thagesen
• Publication Date: 1976-2

Language

• Danish

Media Info

• Features: Figures; References; Tables;

Subject/Index Terms

• TRT Terms: Coarse aggregates; Coefficients; Concrete; Laboratory tests; Polished aggregates; Portland cement concrete; Skid resistance tests; Surface course (Pavements); Texture
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00148649
• Record Type: Publication
• Report/Paper Numbers: Lab Report No. 19
• Files: TRIS
• Created Date: Mar 30 1977 12:00AM