A HIGH TEMPERATURE SEVERITY FACTOR FOR THE STRUCTURAL DESIGN OF AC PAVEMENTS IN AUSTRALIA

Analysis of the data collected on ac pavement temperature regimes through a year at sites in Melbourne, Sydney, Perth, Canberra, Brisbane and Darwin has indicated that a useful temperature severity factor (TSF) for the structural design of an ac pavement at a particular location could be the percentage of a year in which the temperature at a depth in the pavement of 50 mm is above some chosen temperature in the range 30 to 50 degrees C. This temperature factor has been related to an average climate factor which is available for over 500 locations in Australia. The climate factor is the yearly average of the daily maximmum air (Stevenson screen) temperature at the location (ymmt). Variations of the temperature of an ac pavement through a day can be considerable and data on the variation of heavy vehicle loading through the day is needed to allow the designer to develop a meaningful traffic loading factor for such pavements (A). (TRRL)

• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Dickinson, E J
• Publication Date: 1980-8

Media Info

• Features: Figures; References; Tables;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Design; Design methods; High temperature; Pavement design; Traffic loads
• Uncontrolled Terms: Design criteria
• ITRD Terms: 8006: Australia; 4967: Bituminous mixture; 4714: Mix design; 3055: Pavement design; 2534: Summer; 6722: Temperature; 2545: Weather; 2575: Winter
• Subject Areas: Design; Freight Transportation; Highways; Pavements;

Filing Info

• Accession Number: 00325190
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: Intl Rpt AIR 320-1 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Apr 15 2000 12:00AM