Relationships between applied loads, surface defections, traffic volumes, and thicknesses of flexible pavements - Relations entre les charges appliquées, les fléchissements en surface, les volumes de circulation, et les épaisseurs des revêtements souples.

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Proceedings titleTechnical Memorandum, Division of Building Research, National Research Council Canada
ConferenceCanadian Papers Presented at the Fifth International Conference on Soil Mechanics and Foundation Engineering: 01 July 1961, Paris
Pages15; # of pages: 5
AbstractOn the basis of the Canadian Department of Transport's load test data, a method for calculating the surface deflection of an existing flexible pavement under a loaded rigid bearing plate is described. When all other factors are equal, the surface deflection depends upon (a) the thickness of flexible pavement, and (b) the subgrade strength. For any specified traffic volume (less than unlimited) of a given design wheel load and tire inflation pressure, the permissible surface deflection when measured by means of a rigid bearing plate carrying the same total load and unit pressure, must be varied with the strength of the underlying subgrade. This implies that for flexible pavements not strong enough to carry unlimited traffic, a given Benkelman beam deflection under a specified wheel load does not indicate the same ability to carry traffic, if the strengths of the underlying subgrades are different.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number21139
NPARC number20386796
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Record identifier2c6b6d92-8f8e-4bb4-8b8e-c046c5b95b2a
Record created2012-07-25
Record modified2016-05-09
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