The aging of asphalt binders during service is affected by ambient temperature and other mixture-associated variables, such as component proportions in the mix, aggregate properties, and many more. Short-term aging (2 years or less) can be simulated in the laboratory by using a Rolling Thin Film Oven (RTFOT), while long-term aging (more than 7 years) can be simulated with a Pressure Aging Vessel (PAV).

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