Development of a 3/4-Inch Minus Base Course Type A Specification .a ¾-inch minus gradation specification for crushed base course materials for the . at least as good as Montana's current 5A and/or 6A crushed aggregate base.aggregate crush base course,Aggregate Base Course Material Testing and . - Connect NCDOTDec 18, 2014 . Unbound Aggregate, Pavement Base Course, . University of Illinois on sixteen different crushed aggregate materials to predict field rutting.SECTION 02204 - BASE COURSE STANDARD SPECIFICATIONS .leveling course on a prepared surface to the lines and grades shown on the . Aggregate base course shall consist of crushed gravel or crushed stone,.
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