SH/T 0774-2005 (English Version) PDF

Scope: This test method uses high temperature and compressed air to accelerate the aging (oxidation) of asphalt. The purpose is to simulate the oxidative aging of asphalt that occurs during road use. This method cannot accurately simulate the relative rate of aging. The sample used in this method is the residue obtained from the SH/T 0736-2003 asphalt rotating film oven test method (RTFOT) test. Modified asphalt that undergoes phase separation or surface crusting under RTFOT test conditions may also experience similar situations under PAV test conditions, so this method may not be applicable to such modified asphalt. Whether this method is applicable to asphalt containing fine particles remains to be verified. This standard is used to evaluate the oxidative aging resistance of different asphalts under test temperature and pressure conditions, but it cannot explain the influence of mixture factors or the influence of asphalt on aging under actual use conditions. This standard uses SI units. This standard does not involve safety regulations related to use. It is the responsibility of the user of the standard to establish appropriate safety application procedures before use.

SH/T 0774-2005 Referenced Document

ASTM D4753 Standard Specification for Evaluating, Selecting, and Specifying Balances and Scales for Use in Soil, Rock, and Construction Materials Testing
ASTM E220 Standard Test Method for Calibration of Thermocouples By Comparison Techniques
GB/T 5304 Asphalt thin-film oven test method
SH/T 0652 Petroleum asphalt terminology
SH/T 0736 Standard test method for effect of heat and air on a moving film of asphalt (rolling thin-film oven test)

2005 SH/T 0774-2005 Standard practice for accelerated aging of asphalt binder using a pressurized aging vessel (PAV)