GETTING TO GRIPS WITH ROAD SURFACES

THIS ARTICLE GIVES A BRIEF ACCOUNT OF THE WORK THAT DUNLOP HAVE CARRIED OUT IN CO-OPERATION WITH THE UNIVERSITY OF BIRMINGHAM INTO THE DEVELOPMENT OF A NEW SURFACING MATERIAL CALLED 'DELUGRIP'. IT IS REPORTED THAT THIS MATERIAL HAS IMPROVED GRIP CHARACTERISTICS, REDUCES TYRE NOISE, USES LESS BITUMEN AND GIVES A STRONGER SURFACE. REFERENCE IS MADE TO THE EFFECT OF MACRO-TEXTURE AND MICRO-TEXTURE ON WET ROAD SKID-RESISTANCE, ABRASION OF RUBBER (TYRES), SPRAY, NOISE AND COMFORT OF RIDE. REFERENCE IS ALSO MADE TO THE MIXING OF TWO AGGREGATES OF DISSIMILAR WEAR CHARACTERISTICS TO MAINTAIN DRAINAGE CHANNELS IN THE MATERIAL. THE AUTHOR THEN GIVES AN OUTLINE OF THE TRIALS THAT HAVE BEEN MADE TO STUDY THE MATERIAL BY MEANS OF SMALL SAMPLE AREAS AND, RECENTLY, BY LARGER AREAS ON A PRODUCTION BASIS. IT IS REPORTED THAT HIGH-FRICTION CONCRETE SURFACINGS HAVE BEEN PRODUCED IN THE LABORATORY TO THE SAME TECHNICAL CHARACTERISTICS AS THE SURFACINGS USING A BITUMINOUS BINDER AND THAT PROPOSALS ARE BEING CONSIDERED FOR A TEST RUN WITH A CONCRETE SURFACING UNDER ACTUAL WORKING CONDITIONS.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00107859
• Corporate Authors:

  IPC Building and Contract Journals Limited

  32 Southwark Bridge Road
  London SE1 9EX,   England 
• Authors:
  • Hunt, M
• Publication Date: 1974-9-26

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 40-41
• Serial:
  • CONTRACT JOURNAL
  • Volume: 261
  • Issue Number: 4960
  • Publisher: Reed Business Information, Limited
  • ISSN: 0010-7859

Subject/Index Terms

• TRT Terms: Adhesion; Bituminous mixtures; Comfort; Mix design; Moisture content; Noise; Pavement surface course; Pavements; Sound; Strength of materials; Surfacing; Testing; Texture; Tires; Wear; Wet weather
• Uncontrolled Terms: Wet conditions; Wet pavements
• ITRD Terms: 5942: Adhesion; 4967: Bituminous mixture; 9138: Comfort; 4714: Mix design; 6748: Sound; 5544: Strength (mater); 3053: Surface texture; 2972: Surfacing; 1381: Tyre; 5293: Wear; 3015: Wet road
• Subject Areas: Environment; Highways; Materials; Pavements; Vehicles and Equipment; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00083758
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 22 1975 12:00AM