POROUS SAND AND SKIDDING RESISTANCE /IN GERMAN/

TESTS CARRIED OUT ON ROAD CONSTRUCTION SITES IN BAVARIA SHOWED THAT POROUS SAND SCATTERED ONTO A HOT BITUMINOUS SURFACING INCREASES INITIAL SKIDDING RESISTANCE OF THE SURFACING. FIRST THE FINE ASPHALTIC CONCRETE SURFACING CONTAINING BASALT CHIPPINGS WAS COMPACTED BEHIND THE FINISHER BY SMOOTH-WHEELED ROLLERS. THEN BITUMINIZED POROUS SAND WAS SPREAD ON THE HOT SURFACING AND ROLLED IN WITH A RUBBER-TIRED ROLLER. THE RESULT WAS A FINE, ROUGH TEXTURE SIMILAR TO SAND PAPER, THE SLIDING COEFFICIENT OF WHICH WAS ABOUT 0.4. THE TEST ARE TO BE CONTINUED. /FG/RRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/7286414
• Supplemental Notes:
  • Vol 20, No 9, 324 PP, 2 PHOT
• Authors:
  • Bergler, H
• Publication Date: 1969

Media Info

• Serial:
  • Straße Und Autobahn
  • Publisher: Kirschbaum Verlag
  • ISSN: 0039-2162

Subject/Index Terms

• TRT Terms: Aggregate gradation; Basalt; Bituminous materials; Chippings; Coefficients; Compaction; Fine aggregates; Hot mix asphalt; Porosity; Road construction; Rollers; Roughness coefficient; Sand; Skid resistance; Surface treating; Surfacing; Testing
• Uncontrolled Terms: Increase; Sliding
• Old TRIS Terms: Bituminous surfacing; Fine grading; Rubber tired rollers; Smooth rollers
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00218332
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Apr 18 1971 12:00AM