AASHTO T 78-15 (2019) PDF Download

AASHTO T 78-15 (2019) is a standard method of testing the distillation properties of cutback asphalt products. The purpose of this test is to determine the amount of volatile components present in the cutback asphalt product.

The test procedure involves heating a sample of the cutback asphalt in a distillation flask and collecting the vapors that distill over a specified temperature range. These vapors are then condensed and collected in a receiver. The temperature at which each portion of the distillate is collected is recorded, and the amount of distillate recovered at each temperature range is measured.

This standard provides guidelines on the equipment and apparatus to be used for the test, as well as the specifications for the sample size and temperature ranges for the distillation process. The results obtained from this test can be used to assess the quality and performance characteristics of the cutback asphalt product, as well as to ensure compliance with regulatory requirements.