Use of NDT and Pocket Computers in Pavement Evaluation
Publication: Journal of Transportation Engineering
Volume 111, Issue 3
Abstract
The profile and clearance heights at seven bridges of the New Jersey approach roads to the George Washington Bridge needed upgrading. To do this, nondestructive test (NDT) techniques were carried out on the pavement surfaces to determine the subgrade properties under the existing pavement. The NDT dynamic load and the measured deflection basin were analyzed to calculate the subgrade parameters, the elastic modulus (E) the CBR, and the modulus of reaction (K). The testing and calculation of 100 points, under heavy traffic volume, were completed in four hours. The subgrade parameters were used to design the reconstructed new pavement structure for local environmental conditions and for 20‐yr projected traffic loading.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 111 • Issue 3 • May 1985
Pages: 258 - 267
Copyright
Copyright © 1985 ASCE.
History
Published online: May 1, 1985
Published in print: May 1985
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