INFLUENCE OF THE COMPOSITION AND SURFACE TEXTURE OF ROAD CONCRETE ON ROAD HOLDING (IN GERMAN)

IT HAS NOT YET BEEN DETERMINED WHETHER AND TO WHAT EXTENT THE COMPOSITION OF THE CONCRETE AND THE SURFACE TEXTURE OF CONCRETE ROADS AFFECT SKID RESISTANCE BOTH INITIALLY AND AFTER FAIRLY LONG USE BY TRAFFIC. IN AN EFFORT TO ANSWER THESE QUESTIONS, CYLINDERS 22.5 CM IN DIAMETER WERE MADE OUT OF SPECIFIED CONCRETE HAVING A VARYING AGGREGATE COMPOSITION AND SURFACE TEXTURE, AND TESTED IN THE LABORATORY IN A POLISHING MACHINE WITH ROTATING RUBBER ROLLERS. THE BEST SKID RESISTANCE WAS PRODUCED BY A DEEP FINE FLUTING WITH AN OPENING WIDTH OF APPROXIMATELY 2.5 MILLIMETER. APART FROM A HIGH QUALITY CONCRETE IT IS NECESSARY TO USE AN ANGULAR QUARTZ SAND OF CONSTANT COMPOSITION, FOR EXAMPLE 0/3 MM., AS A FINE SIZE RANGE, AND TO KEEP THE WATER-CEMENT RATIO AS LOW AS POSSIBLE. /FG/RRL/

  • Supplemental Notes:
    • Vol 17, No 10, PP 369-373, 403-406, 5 TAB, 18 PHOT, 17 REF
  • Corporate Authors:

    Beton Verlag GmbH

    Duesseldorfer Strasse 8, Postfach 450
    4 Duesseld Okassel,   Germany 
  • Authors:
    • Walz, W
  • Publication Date: 1967

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00206806
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Apr 27 1970 12:00AM