Insulated road study

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Journal titleTransportation Research Record
Pages8083; # of pages: 4
Subjectroad networks; insulating (activity); frost penetration; frost heaving; Roads
AbstractThe results of a 3-year insulated road study showed that frost penetration inward from the edge of an insulated area is about the same as the downward penetration on a control section. Moisture accumulated in the frost-susceptible subgrade after the frost line penetrated the insulation. During periods of rapid cooling, the temperature of the surface above an insulated pavement may be lowered sufficiently to permit surface icing if atmospheric moisture conditions are suitable. Terminating the insulation without feathering induces abrupt changes in elevation in the roadway as a result of heaving.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number16244
NPARC number20374870
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Record identifiercb4861aa-dc1b-4dc4-b36a-bca56b8a1ef0
Record created2012-07-23
Record modified2016-05-09
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