Abstract
The Warm Mix Asphalt (WMA) mixture containing Recycled Asphalt Pavements (RAP) has the advantages of the WMA technology and the RAP simultaneously. Also, moisture damage is a concern in these mixtures in all service temperatures which has not been investigated comprehensively for all service temperatures in one study. Therefore, performance of this mixture against moisture in all service temperatures, and was considered as the target of this research study. In this way, effects of moisture on performance of the mixtures were investigated using experimental methods including Resilient Modulus, Indirect Tensile Strength (ITS), Indirect Tensile (IDT) fatigue failure, Semi-circular Bending (SCB), and Dynamic Creep tests. The results generally indicated that although the WMA mixtures containing RAP have hydrophilic and moisture sensitive aggregates and aged binder, they had an appropriate performance against the effect of moisture. Therefore, this mixture can be recommended for the regions with moisture damage, environmental, and natural resources limitations concern.
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