Graphical Solutions for Back-Calculation of Rigid Pavement Parameters
Publication: Journal of Transportation Engineering
Volume 124, Issue 1
Abstract
This technical note presents the graphical version of the solutions of a closed-form back-calculation algorithm for two-layer rigid pavements. The development of the graphs and the theoretical basis for the choice of analysis parameters for the graphical solutions are described. Graphs are developed for back-calculating the moduli of the pavement slab and the subgrade, based on the common deflection measurement data obtainable from typical falling weight deflectometer tests. Two sets of graphs are presented, one for back-calculating the radius of relative stiffness, and the other for determining the deflection factor that relates pavement properties to surface deflections. The graphical solutions are applicable for back-calculating the properties of rigid pavements supported on either a liquid foundation or a solid foundation.
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References
1.
AASHTO guide for design of pavement structures.. (1993). Am. Assn. of State Hwy. and Transp. Officials, Washington, D.C.
2.
Ioannides, A. M., Barenberg, E. J., and Lary, J. A. (1989). “Interpretation of falling weight deflectometer results using principles of dimensional analysis.”Proc., 4th Int. Conf. on Concrete Pavement Des. and Rehabilitation, 231–247.
3.
Li, S., Fwa, T. F., and Tan, K. H.(1996). “Closed-form back-calculation of rigid-pavement parameters.”J. Transp. Engrg., ASCE, 122(1), 5–11.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 124 • Issue 1 • January 1998
Pages: 102 - 104
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jan 1, 1998
Published in print: Jan 1998
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