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a) Why should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated?

a) Why should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated?

Traffic and Highway Engineering
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter21: Pavement Management
Section: Chapter Questions
Problem 4P
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Q. 4 a) Why should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated? b) The following expression is associated with the use of the Falling Weight Deflectometer (FWD) on pavements earmarked for rehabilitation. 1.5pa d, = Mg MR %3D E, i. What is the structural transformation required to make the use of the above expression possible? Which parameters in the expression relate to the transformation? I1. Identify the parameters in the expression which are obtained from the FWD test and briefly III. describe how the setup of the test enables those parameters to be obtained. [You may use any relevant expression(s) or equation(s) to support your explanation.]
Transcribed Image Text:Q. 4 a) Why should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated? b) The following expression is associated with the use of the Falling Weight Deflectometer (FWD) on pavements earmarked for rehabilitation. 1.5pa d, = Mg MR %3D E, i. What is the structural transformation required to make the use of the above expression possible? Which parameters in the expression relate to the transformation? I1. Identify the parameters in the expression which are obtained from the FWD test and briefly III. describe how the setup of the test enables those parameters to be obtained. [You may use any relevant expression(s) or equation(s) to support your explanation.]
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