ASPHALT SURFACE TREATMENTS

This article is concerned with the treatment of asphalt road surfaces in order to restore their high skid resistance and good texture. The author points out that these properties are frequently lost long before the end of the structural life of the surfacing. Reference is made to an earlier paper which pointed out that the chippings applied to asphalt surfacings are frequently of inadequate quality, and the splash and spray problems associated with this type of surfacing are discussed. Surface dressings are examined and it is mentioned that they also give a splash and spray problem, presenting adhesion problems and having a tendency to loose chippings and/or fat up under conditions of stress. 12 requirements of a road surface are tabulated and an account is given of the development and use of friction courses. A series of 12 tables summarize the way in which four types of surfacing (hot rolled asphalt, fine cold asphalt, surface dressing and friction course) meet the 12 requirements. It is concluded that the friction scores on most, if not all, these points, particularly on high-speed roads. An appendix sets out a specification for a friction course material. /TRRL/

• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Authors:
  • Cram, I A
• Publication Date: 1975-2-3

Language

• English

Media Info

• Features: Photos; Tables;
• Pagination: p. 18-20
• Serial:
  • Highways and Road Construction
  • Volume: 43
  • Issue Number: 1782

Subject/Index Terms

• TRT Terms: Adhesion; Asphalt; Asphalt pavements; Chippings; Cold coated materials; Cold mix paving mixtures; Defects; Evaluation; Flexible pavements; Friction; Hot coated materials; Hot rolling; Motor vehicles; Pavement grooving; Pavement layers; Pavement surface course; Pavements; Rolled asphalt; Seal coats; Skid resistance; Splashing; Surface treating; Surfacing; Texture
• Old TRIS Terms: Non-skid treatment; Splash
• ITRD Terms: 5942: Adhesion; 4585: Chippings; 4988: Cold coated material; 5238: Defect (tech); 2944: Flexible pavement; 5452: Friction; 4997: Hot coated material; 2952: Layer; 3040: Non skid treatment; 4989: Rolled asphalt; 9146: Spray (veh); 2984: Surface dressing; 3053: Surface texture; 2972: Surfacing
• Subject Areas: Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00130407
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 7 1976 12:00AM