Composite pavements, when compared to traditional flexible or rigid pavements, have
aspects) while being an economically viable alternative to the traditional flexible and rigid
4
pavement designs (economic aspect). Some of the general benefits that composite pavements
can provide are (Donald, 2003; Jofre and Fernandez, 2004; Nunn, 2004):
• Strong support to the flexible layer provided by the rigid base layer
• Good levels of the rideability of the pavement and driver comfort by providing a
smooth and quiet driving surface
• Adequate pavement surface friction properties
• Preservation of the structural integrity of the rigid base provided by an asphalt surface
layer, which can be periodically replaced
• Prevention of the intrusion of deicing salts and surface water to the rigid base due to
the protection provided by the asphalt layer
• Reduction of the temperature gradient in the rigid layer because of the insulation
provided by the overlying asphalt surface layer.
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