COOLING OF BITUMINOUS LAYERS AND TIME AVAILABLE FOR THEIR COMPACTION

A computer model has shown that the cooling time of a hot bituminous layer is very dependent upon the laid thickness, being proportional to the thickness to the power 1.8. The cooling time is also strongly dependent upon the initial laying and specified minimum compaction temperatures and on the ambient windspeed and temperature. A set of tables is presented enabling the compaction time to be predicted from a knowledge of the laying and environmental conditions. Recommendations are given to establish minimum laid thicknesses for various types of rolled asphalt, to achieve a reasonable compaction time. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02665247
• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • DAINES, M E
• Publication Date: 1985

Media Info

• Features: Figures; References; Tables;
• Pagination: 11 p.
• Serial:
  • TRRL RESEARCH REPORT
  • Issue Number: 38
  • Publisher: Transport and Road Research Laboratory (TRRL)
  • ISSN: 0266-5247

Subject/Index Terms

• TRT Terms: Bituminous materials; Compaction; Computer programs; Cooling; Forecasting; Heat; Hot coated materials; Mathematical models; Rolled asphalt; Surface treating; Temperature; Temperature measurement; Thickness; Time; Velocity; Wind
• Old TRIS Terms: Bituminous surfacing; Wind velocity
• ITRD Terms: 4967: Bituminous mixture; 3686: Compaction; 8525: Conference; 6711: Cooling (mater); 132: Forecast; 6743: Heat; 4997: Hot coated material; 2952: Layer; 3623: Laying; 6473: Mathematical model; 4989: Rolled asphalt; 8645: Software; 2515: Sun; 6722: Temperature; 6710: Temperature measurement; 5933: Thickness; 5414: Time; 2554: Wind
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00452471
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: NRR 4
• Files: ITRD, TRIS, ATRI
• Created Date: Jul 31 1986 12:00AM