LESSONS DRAWN FROM EXPERIMENTAL ASPHALTIC CONCRETE ROADS

DOOR EXPERIMENTELE ASFALBETONWEGEN VERWORVEN KENNIS

The judicious selection of mix design (54% of 2;16 crushed stone, 36% snad, 1;3 of which is crushing sand and 2;3 natural sand, 10% of limestone filler, and 6% of 50;70 or 80;100 bitumen as binder), care during manufacture and laying, and choice of the right temperature for rilling lead to satisfactory compaction (5% maximum of percentage of voids) and roughness. Some physico-chemical characteristics (asphaltene content) and rheological properties of bituminous binders (non-newtonian characteristics) also influence laying and rolling. Observations made on some experimental sections showed cracks and wear of the surface mortar. Laboratory studies of binders led to the probable cause of accelerated aging evolution in time of bitumen penetration at values lower than 40 with a percentage in non-soluble materials in normal heptane at a temperature of 27 degrees. ;TRRL;

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00401277
• Corporate Authors:

  Association Permanente des Congres Belges de Route

  49 avenue d'Auderghem
  Brussels 4,   Belgium 
• Authors:
  • Huet, J
• Publication Date: 1972-3

Language

• Undetermined

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 3-28
• Serial:
  • Technique Routiere
  • Volume: 17
  • Issue Number: 1
  • Publisher: Association Permanente des Congres Belges de Route
  • ISSN: 0040-1277

Subject/Index Terms

• TRT Terms: Asphalt concrete; Binders; Compaction; Cracking; Experimental roads; Mix design; Physicochemical properties; Rheological properties; Roughness; Surfaces
• Uncontrolled Terms: Surface cracks
• Old TRIS Terms: Aging
• ITRD Terms: 5292: Ageing; 4991: Asphaltene; 4963: Bitumen; 4997: Hot coated material; 4714: Mix design; 6249: Splitting tensile test; 5936: Viscosity
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 00125664
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: May 14 1976 12:00AM