THE DISTRIBUTION OF TEMPERATURES IN EXPERIMENTAL PAVEMENTS AT ALCONBURY BY-PASS
The temperature history of four small experimental pavements laid adjacent to the full-scale road experiment at Alconbury By-Pass has been studied in detail. Temperatures in the pavements have been recorded at depths of 20mm, 40mm, 100mm, 200mm and 350mm. There is little major difference in the temperature behaviour of the four constructions. Representative elements of the history of one of the constructions are presented, including temperature variations with depth over 5-6 day periods of uniform hot, warm, cool and cold weather. Two attempts have been made to predict temperature gradients in the pavements, firstly from theoretical heat-flow considerations and, more empirically, from an assumption that hte heating/cooling cycle can be represented by a simple harmonic function of time. The validity and accuracy of these predictions are discussed. The climatological significance of the Alconbury site is briefly considered.
Transport and Road Research Laboratory (TRRL)Wokingham, Berkshire United Kingdom
- Wilson, A H
- Publication Date: 1976
- Features: Appendices; Figures; References; Tables;
- Pagination: 30 p.
- TRT Terms: Experimental roads; Forecasting; Heat flow; Temperature; Temperature gradients
- Uncontrolled Terms: Temperature distribution
- Subject Areas: Highways; Pavements;
- Accession Number: 00142569
- Record Type: Publication
- Report/Paper Numbers: TRRL Lab Rpt. 719 Res. Rpt.
- Files: TRIS, ATRI
- Created Date: Jan 16 1977 12:00AM