Abstract

The compatibility of rock asphalt modification agent and matrix asphalt was excellent, while different contents of the rock asphalt had great influence on the mechanics properties of mixture. Based on the aggregate grade of the AC-20 mixture, the mechanical properties of the matrix asphalt mixtures and the rock asphalt mixtures with different quantities of rock asphalt were studied by laboratory tests, including the high-temperature stability, low-temperature anti-cracking performance and water stability. This research is to give reference for the proper rock asphalt quantity of the mixture.

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