AASHTO R 30-02 (2019) PDF Download

The AASHTO R 30-02 (2019) standard provides guidelines for the conditioning of both compacted and uncompacted HMA. The standard outlines three types of conditioning: mixture conditioning for volumetric mixture design, short-term conditioning for mixture mechanical property testing, and long-term conditioning for mixture mechanical property testing.

The purpose of mixture conditioning for volumetric mixture design is to simulate the precompaction phase of the construction process. This allows engineers to determine the optimal mixture design in terms of volume, ensuring the desired performance characteristics of the HMA.

Short-term conditioning for mixture mechanical property testing is also focused on simulating the precompaction phase of construction. This allows for mechanical property testing of the HMA, providing insights into its performance under various loading conditions.

Long-term conditioning is aimed at simulating the aging process that occurs over the service life of a pavement. This type of conditioning is essential for accurately assessing the long-term performance of the HMA and determining its expected service life.

The AASHTO R 30-02 (2019) standard provides step-by-step procedures and guidelines for each type of conditioning, ensuring consistency and accuracy in the testing and evaluation of HMA mixtures.