中国·永利y23455(股份)有限公司

The ageing 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 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).