The recently improved Pressure Aging Vessel (PAV) from ATS has been designed to simulate in-service oxidative aging of asphalt binder according to procedures developed by the Strategic Highway Research Program (SHRP). The new PAV system is fully compliant with the most recent ASTM and AASHTO standards for these tests. (Refer to ASTM designation D6521-00 and AASHTO method R28-02).
A complete PAV system consists of an ASME-code stainless steel pressure vessel in a stainless steel cabinet with encased band heaters, a precision sample holder for simultaneous testing of ten specimens, a set of ten TFOT specimen trays, a pressure controller, temperature controller, pressure and temperature measurement devices, temperature recorder, and a specimen loading and unloading tool.
