AASHTO R 79-19 PDF Download

AASHTO R 79-19 is a standard practice that outlines the procedure for drying compacted asphalt specimens using a vacuum apparatus. This practice ensures that the specimens are dried while maintaining their integrity, as they are kept at a temperature close to room temperature during the process. This is beneficial because it allows for repeated testing on the same sample, if required.

In addition to asphalt specimens, this standard can also be applied to other construction materials such as concrete, soils, aggregates, and loose asphalt mixtures. However, it is important to follow the manufacturer's recommendations for drying these alternate materials.

It is worth noting that AASHTO R 79-19 was previously known as provisional standard PP 75.