MODIFIED ROLLING TO IMPROVE COMPACTION OF DENSE COATED MACADAM

The common practice of roller drivers leads to a characteristic initial variation in density of dense roadbase and basecourse macadam across the laid width. This variation persists even after many years of intense commercial traffic, so that the performance of the material is determined by its properties at the time of construction. For maximum economy good compaction in the wheel-path zones is essential. Results of three road trials show that modified rolling with a tandem roller can improve compaction considerably in these zones which determine road performance. /Author/TRRL/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

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

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 17 p.
• Serial:
  • AASHTO QUARTERLY

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bituminous mixtures; Compaction; Density; Durability; Macadam; Pavement design; Pavement performance; Tandem rollers; Variables
• Old TRIS Terms: Wheel path
• ITRD Terms: 2990: Basecourse; 4967: Bituminous mixture; 3686: Compaction; 5908: Density; 5910: Durability; 3055: Pavement design; 2961: Roadbase; 3684: Roller; 9086: Variability
• Subject Areas: Construction; Highways; Materials; Pavements; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 00147922
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL Lab Rpt LR 724 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Aug 4 1977 12:00AM