AASHTO M 319-02 (2019) PDF Download

AASHTO M 319-02 (2019) is a standard specification that outlines the use of reclaimed concrete aggregate as an unbound soil-aggregate base course material. The specification states that when reclaimed concrete aggregate is properly processed, hauled, spread, and compacted on a prepared grade to appropriate density standards, it can provide sufficient stability and load support for road or highway base courses.

The standard also allows for the blending of reclaimed concrete aggregate with natural or crushed aggregate if desired. It emphasizes that the approach presented in the specification is suitable for the installation of a reclaimed concrete aggregate base course. However, it acknowledges that local experience, practices, or materials that have proven successful may be used as alternatives to this specification.

It is important to note that this specification is specifically intended for use in locations where a surfacing will be placed over the base course. It is not intended for use in base courses where no surfacing will be applied.