AIR VOIDS VERSUS PRD (PERCENTAGE REFUSAL DENSITY)

Three types of end result bituminous compaction specifications are defined, along with a review of recent research into the performance benefits of improved site densities. Methods of density measurement are also discussed in conjunction with a detailed description of the air voids and percentage refusal density specifications and their application. Test data from a contract on A19 (T) at Riccall, North Yorkshire, is used to compare the two specification methods when applied to roadbase and basecourse macadam. The authors then consider the advantages and disadvantages of each method and investigate the potential performance of macadams at various binder contents and compaction levels. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02656868
• Corporate Authors:

  INSTITUTION OF HIGHWAYS & TRANSPORTATION

  6 ENDSLEIGH STREET
  LONDON,   United Kingdom  WC1H 0DZ
• Authors:
  • McNicol, A
  • BELL, G
• Publication Date: 1986-2

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 3-8
• Serial:
  • HIGHWAYS & TRANSPORTATION
  • Volume: 33
  • Issue Number: 2
  • Publisher: INSTITUTION OF HIGHWAYS & TRANSPORTATION
  • ISSN: 0265-6868

Subject/Index Terms

• TRT Terms: Air voids; Base course (Pavements); Binder content; Bituminous bases; Bituminous macadam; Compaction; Density; Measurement; Pavement performance; Specifications
• Old TRIS Terms: Air voids content; Density measurement; Percentage refusal density
• ITRD Terms: 2990: Basecourse; 4929: Binder content; 4921: Bitumen macadam; 4967: Bituminous mixture; 3686: Compaction; 5908: Density; 6226: In situ; 5938: Porosity; 2961: Roadbase; 177: Specifications; 5931: Stiffness; 6288: Test method; 8119: United Kingdom
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00466547
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Mar 31 1988 12:00AM