Abstract
Road Rater deflection data were used to estimate the in-place subgrade strength and the in-place structural capacity of existing pavements. Pavement behavior can be expressed in terms of a reduced thickness of "reference" quality paving materials or as a reduced modulus of elasticity for the constructed thickness of asphaltic concrete. Mathematical relationships were developed making it possible to "program" the evaluation procedure (in modular form) for use with small hand calculators or minicomputers.
The pavement evaluation method has been successfully implemented in making recommendations for overlay designs for several pavement sections. Road Rater deflection data were used to estimate the in-place subgrade strength and the structural capacity of the existing pavement. Pavement rutting and roughness were also considered in determining final overlay thickness recommendations.
Report Date
1-1982
Report Number
UKTRP-82-3
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.1982.03
Repository Citation
Sharpe, Gary W.; Southgate, Herbert F.; and Deen, Robert C., "Implementation of Road Rater Deflection Testing for Pavement Evaluation and Overlay Design" (1982). Kentucky Transportation Center Research Report. 773.
https://uknowledge.uky.edu/ktc_researchreports/773
Notes
The contents of this report reflect the views of the authors who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Kentucky Department of Transportation, of the University of Kentucky, nor of the Federal Highway Administration. This report does not constitute a standard, specification, or regulation.
Prepared for the International Symposium on Bearing Capacity of Roads and Airfields (Trondheim, Norway: June 23-25, 1982).