PAVEMENT ROUGHNESS AND RUN-OFF CONDITIONS /IN FRENCH/

TO OBTAIN GOOD ADHESION ON WET ROADS, THE WATER OF THE TIRE CONTACT AREA MUST BE ELIMINATED. THIS IS DONE BY REDUCING THE THICKNESS OF THE WATER FILM WHEN IT IS RAINING BY PROVIDING ADEQUATE ROUGHNESS OF THE SURFACING AND SHARP EDGES ON THE CHIPPINGS. INVESTIGATIONS INTO SIMPLE RUN-OFF ARE DESCRIBED TO GAIN A BETTER KNOWLEDGE OF RUN-OFF LAWS OF DIFFERENT PAVEMENT TEXTURES OBTAINED WITH VARIOUS MIX-DESIGNS, AND TO CARRY OUT OBSERVATIONS ON THE WEAR OF THE CHIPPINGS SHARP EDGES. EMPHASIS IS MADE ON THE NEED FOR A BETTER APPLICATION OF METHODS TO MEASURE PAVEMENT ROUGHNESS TO SPECIFIC CASES, AND FOR A RATIONAL SELECTION OF HIGHWAY DESIGNS AND MIX-DESIGNS OF THE SURFACING. /LCPC/A/RRL/

• Supplemental Notes:
  • No 39, pp 73-84, 6 FIG, 5 TAB, 2 PHOT
• Authors:
  • Lucas, J
• Publication Date: 1969-7

Media Info

• Serial:
  • Bull Liaison Labs Routiers /France/
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Adhesion; Chippings; Films (Coatings); Mix design; Moisture content; Pavement performance; Pavements; Polished aggregates; Roughness; Runoff; Surface course (Pavements); Surfacing; Texture; Thickness; Tires; Water; Wear
• Uncontrolled Terms: Wet conditions
• Old TRIS Terms: Water film
• Subject Areas: Highways; Hydraulics and Hydrology; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00206841
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: May 10 1971 12:00AM