Modelling And Simulation Of The
Rutting Resistance Of Bituminous Mixes:
Experimental And Stochastic Approaches
Author(s)
A. E. Ouni, A. Dony & J. Colin
Abstract
This work deals with the simulation of the rutting resistance of bituminous
binders used in road pavement. First, the experimental protocol was assessed to
simulate pavement traffic allowing the prediction of the rutting depth evolution
versus cycle number of wheel passes under isothermal conditions. Then a
probabilistic parametric approach was developed to take into account the
different parameter uncertainties related to the changes in experimental
conditions. We investigate through the stochastic approach the rutting sensitivity
of bituminous mixes under traffic load. A confidence region of a high probability
of 99% is defined to allow the prediction of the in situ rutting potential of
bituminous specimens.
Keywords: rutting, bitumen, uncertainties, stochastic.
1 Introduction
The environment protection has been and continues to be the major concern of
the road politics in industrialized countries. With the signature of the Kyoto
protocol agreement, the European Union is involved to reduce the energy
consumption and the resulting greenhouse gases emissions [1]. The warm mix
asphalt (WMA) is a promising technology which has been developed to
contribute to the protection of the environment and sustainable development
program [2–5]. The WMA is a mixture of mineral aggregates and bitumen
produced and placed on the road at a lower temperature comparing to the
traditional hot mix asphalt (HMA). Reductions in temperature of 20-50°C have
Keywords
rutting, bitumen, uncertainties, stochastic
Related Book
Other papers in this volume
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