The objective of this study was to capture the changes in mechanical properties of the base course when materials are compacted at maximum dry density (MDD) and optimum moisture content (OMC) and then additional water is introduced. The effects of this additional water in the base course is evaluated to understand the effects of water infiltration due to seasonal variation even after the base layer is constructed. Blends of virgin aggregate (VA) and reclaimed asphalt pavement (RAP) were selected for this evaluation. The laboratory test results showed that the addition of water increases the permanent deformation and decreases resilient modulus (both adverse effects). However, samples with better drainage properties (i.e., RAP-VA blends) perform better than base course constructed with VA alone.
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Ullah et al. (2020) studied this question.
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