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Mathematical Model of Pavement Performance Under Moving Wheel Load
Trr No. 1384 Pavement Design, Management, And Performance, pp. 94-99
Will nonlinear backcalculation help?
Backcalculation of FWD data often results in unrealistic layer moduli. The modulus of the subgrade may be two to three times the expected value, and the modulus of an intermediate granular material may be lower than the subgrade modulus. If stresses or strains measured in the pavement are compared with theoretical values, the agreement is often poor. All theoretical models for calculating pa…
Prediction of Load Associated Damage in Asphalt Layer
The first step in structural evaluation of pavements (when using the analytical-empirical approach) is the determination of layer thicknesses, moduli, and types of materials. Based on this the structural performance is normally predicted by calculating the number of loads to cause a certain amount and severity of cracking. Most procedures do not predict the changes in the structural condition, …
