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Abstract

Mineral aggregates make up 90 to 95% of a HMA mix by weight or approximately 75 to 85% by volume. The properties of the mineral aggregates have significant affects in performance of our local roadways which offers the possibility of investment in these properties towards resisting different ranges of external applied loads and environmental conditions. For this reason, the performance properties susceptibility due to aggregate properties (Consensus and Source) is going to be evaluated with a wide range of blends, fine, medium and coarse gradation mixtures. The selected source property in this study was toughness (% abrasion), and the consensus property used in this study was angularity (% crushed). Results show that the medium graded mixtures were more susceptible in terms of Marshall Stability due to the change in % abrasion and % crushed aggregate, while the coarse graded mixtures were more susceptible in terms of Marshall Flow due to the change in % abrasion and % crushed aggregate.

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