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PAVEMENT DESIGN FOCUS AREA

Abstract Traditionally, pavement designs consisted of considering the design traffic loading over the structural life of the road together with a single conservative estimate of the layer moduli in order to estimate the bearing capacity of the pavement using mechanistic analysis. Only a single point in time is considered ignoring the changes in layer characteristics

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Abstract Plastic strain causes non-recoverable, permanent deformation in pavement layers. The effect of plastic strain is generally referred to as rutting. Rutting may occur throughout the pavement structure in granular, stabilised and asphalt layers. Granular materials exhibit plastic deformation when loading occurs outside the elastic limits. The fatigue life evaluation of granular layers during design

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