AASHTO T 180:2010
AASHTO T 180:2010 Method Of Test For Moisture-Density Relations Of Soils Using A 4.54-Kg (10-Lb) Rammer And A 457-Mm (18-In.) Drop Describes the relationship between the moisture content and density of soils when compacted in a given mold of a given size with a 4.54-kg (10-lb) rammer dropped from a height of 457 mm (18 in.).