A probe for measuring both thermal conductivity and water content of soils

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ConferenceProceedings of the 3rd International Specialty Conference: Cold Regions Engineering, Northern Resource Development: 04 April 1984, Edmonton, ALBT, Canada
Pages835849; # of pages: 15
Subjectmeasuring probes; properties of soils; thermal conductivity; moisture content; surface temperature; volumetric water content; soil dielectric constant
AbstractA two-pronged metal probe has been developed at the Division of Building Research, National Research Council of Canada, to simultaneously measure the thermal conductivity and volumetric water content of soils in the laboratory and in the field. Thermal conductivity is measured by using one prong as a transient line heat source probe. Using both prongs as a parallel transmission line, the apparent dielectric constant of the soil is determined by the time- domain reflectometry technique. Volumetric water content is related to the apparent dielectric constant by an empirical relationship valid for most soils. This paper describes the construction and use of the probe and presents some preliminary results obtained in the laboratory and in the field.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number23321
NPARC number20378773
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Record identifierd06eb012-cf79-41ee-8b43-da8c282e1b10
Record created2012-07-24
Record modified2016-05-09
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