AGGREGATE TESTS FOR HOT-MIX ASPHALT: STATE OF THE PRACTICE

This Circular contains the 1994 state-of-the-practice for aggregate tests and specifications used by state transportation agencies to control the quality of aggregate for hot-mix asphalt (HMA). The information was generated as a part of National Cooperative Highway Research Program (NCHRP) Project 4-19, Aggregate Tests Related to Asphalt Concrete Performance in Pavements (NCHRP Report 405) and is an unpublished appendix of the project's final report. The information shows the considerable variation in the current aggregate tests and related specifications among the state transportation agencies and the difficulty in accepting any of the current standards on a national basis.