PLANNING OF ROAD PROJECTS-EARTHWORKS-TURKEY
The procedure for using the mistors for temperature measurement at different points of the road, pavement and soil are outlined, the apparatus is described and the results obtained are discussed. The use of small-sized thermistors which have small thermal dissipation factors, reduces the rate of error. A capsuling system has been developed to insulate (against physical and chemical effects) thermistors placed underground. The experiment performed consisted of the measurement of temperature in different depths of bituminous mixture of a surface course 20 cm thick during the summer and winter months. The stability variations in different depths of this surface course were examined using the "temperature-stability relationship. The experimental results have proved the importance of selection of a suitable "critical design temperature" for different depths as well as for different climatic conditions. Thermistors were also used to calibrate frost penetration measuring devices and for measurements during the construction of a coastal road.
- Presented at the XIVth World Road Congress, Prague, Czechoslovakia, 1971.
Permanent International Assoc of Road Congresses43 Avenue du President Wilson
Paris 16eme, France
- Koksal, K
- Isiksalan, C
- Publication Date: 1971
- Features: Figures; References; Tables;
- Pagination: 11 p.
- TRT Terms: Bituminous mixtures; Calibration; Climate; Earthwork; Experiments; Measuring instruments; Pavements; Soils; Stability (Mechanics); Temperature measurement; Thermistors
- Subject Areas: Geotechnology; Highways; Pavements;
- Accession Number: 00265681
- Record Type: Publication
- Report/Paper Numbers: Book I-24
- Files: TRIS
- Created Date: Feb 27 1975 12:00AM