AASHTO Designation: R 28-06 pdf free download

Standard  Practice  for

Accelerated Aging of Asphalt Binder

Using a Pressurized Aging Vessel  (PAV)

AASHTO Designation: R 28-06


AASHTO Designation: R 28-06 pdf free download

1.1.This practice covers the accelerated aging (oxidation) of asphalt binders by means of pressurized air and elevated temperature.

The practice is intended to simulate in-service oxidative aging of asphalt binders and is intended for use with residue from T 240 (RTFOT).

1.2.The aging of asphalt binders during service is affected by mixture-associated variables such as the volumetric proportions of the mix, permeability of the mix,

properties of the aggregates, and possibly other factors.

This practice is intended to provide an evaluation of the relative resistance of different asphalt binders to oxidative aging at selected temperatures and cannot account for mixture variables.

1.3.This standard may involve hazardous materials, operations, and equipment.

 This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish

appropriate safetyand  health practices and to determine the applicability of regulatory limitations prior to use.


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