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Description
Abstract. This paper presents the properties of hot- and warm-mix asphalt concrete and possible use in pavements using a high rate of RAP (reclaimed asphalt pavement) and waste cooking oil (WCO). Laboratory experiments delivered results on the mixtures' essential volumetric and Marshall charac-teristics and their several mechanical performance parameters. These out-comes are used to deliver a mix-design procedure and propose critical rec-ommendations on using that type of asphalt concrete. The paper provides pavement structures for medium/low-traffic roads with hot- or warm-mix asphalt concrete layers with up to 80% of RAP and WCO as a rejuvenator. The paper also includes a direct cost analysis to show the savings achieva-ble with that technology. The results allow us to conclude that the hot- and warm-mix asphalt concrete materials developed in the project are suitable, durable after ageing and cost-effective for medium/low-traffic road pave-ments.
