ROLLING REQUIREMENTS TO IMPROVE COMPACTION OF DENSE ROADBASE AND BASECOURSE MACADAM

There is potential for improving the compaction of dense roadbase and basecourse macadam in the critical wheel-path zones which determine the structural performance of pavements. The report considers the effect of cooling of bituminous layers on compaction and describes a procedure which should expedite the rolling process and ensure that adequate compactive effort is applied before the material has cooled excessively. Proposals are made for an improved method specification. It is hoped that reductions in the design thickness of dense coated macadams can be made when improvement in compaction in the wheel-paths has been demonstrated at several sites. /Author/TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02667045
• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Powell, W D
  • LEECH, D
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 21 p.
• Serial:
  • Publication of: Transport and Road Research Laboratory
  • Publisher: Transport and Road Research Laboratory (TRRL)
  • ISSN: 0266-7045

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bituminous mixtures; Compaction; Cooling; Density; Design; Macadam; Mathematical models; Pavement design; Rollers; Specifications; Standards; Temperature; Thickness
• Uncontrolled Terms: Decreases
• Old TRIS Terms: Wheel path
• ITRD Terms: 2990: Basecourse; 4967: Bituminous mixture; 3686: Compaction; 6711: Cooling (mater); 9009: Decrease; 5908: Density; 9011: Design (overall design); 6473: Mathematical model; 3055: Pavement design; 2961: Roadbase; 3684: Roller; 187: Specification (standard); 6722: Temperature; 5933: Thickness
• Subject Areas: Construction; Design; Highways; Materials; Pavements; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 00147924
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL Lab Rpt LR 727 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Aug 4 1977 12:00AM