Rock, crushed stone and sand and gravel are natural aggregate products used for a variety of appliions including road and utility construction, backfill, erosion control and slope protection. If you are running an aggregate processing facility, you should be aware of .
Grade 8 Gravel . AASHTO #8 is a large grade of crushed stone. Like AASHTO #1, #3, and #57, it is a clean material that will not compact. However, the top size of AASHTO #8 aggregate is significantly smaller, making it ideal for different appliions within the construction industry.