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Frost modelling and pavement temperatures: summer pavement temperaures and frost modelling
Luleå tekniska universitet.
2000 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Three papers form the present thesis. In paper I a numerical model for calculation of surface temperatures on a highway is presented. The model takes all relevant factors into consideration, i.e. conduction, wind, short- and long wave radiation. Temperatures obtained by the model are compared with those measured in a highway pavement. A good correlation is obtained. The model is using the position of the sun as input data and is not considering noon time conditions all the day, as in many other models for surface temperature calculation. In paper II and III a simple numerical model for calculation of frost depth and frost heave in highways is presented. Calculation results are compared with data obtained from two different test sites. Comparison is also made to laboratory tests conducted by using a new laboratory-testing device, developed by the author. The equipment is described in paper III. It is further argued, that frost heave to great extent is caused by ice lenses formed by water from the pores in unfrozen soil and only to a minor extent by water taken from the ground water, which is normally assumed. Good correlation is found between calculated and observed frost penetration and frost heave, in both field and laboratory condition. Special attention is paid to the influence of heave rate and water intake rate.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2000. , p. 10
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757 ; 2000:18
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-17226Local ID: 2459ecb0-d573-11db-8550-000ea68e967bOAI: oai:DiVA.org:ltu-17226DiVA: diva2:990227
Note
Godkänd; 2000; 20070318 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Geotechnical Engineering

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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