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AASHTO T 99-01 (2009)
- Standard Method of Test for Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a 305-mm (12-in.) Drop
- standard by American Association of State and Highway Transportation Officials, 2009
- Publisher: AASHTO
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These methods of test are intended for determining the relation between the moisture content and density of soils compacted in a mold of a given size with a 2.5-kg (5.5-lb) rammer dropped from a height of 305 mm (12 in.). Four alternate procedures are provided as follows: Method A--A 101.60-mm (4-in.) mold: Soil material passing a 4.75-mm (No. 4) sieve. Method B--A 152.40-mm (6-in.) mold: Soil material passing a 4.75-mm (No. 4) sieve. Method C--A 101.60-mm (4-in.) mold: Soil material passing a 19.0-mm (3/4-in.) sieve. Method D--A 152.40-mm (6-in.) mold: Soil material passing a 19.0-mm (3/4-in.) sieve.