Bulk Density ("Unit Weight") and Voids in Aggregate …
beam molds of 100 mm (4 in.) by 100 mm (4 in.) when the nominal maximum aggregate size does not exceed 38 mm (1.5 in.). Specimens shall be cast and hardened with the long axes horizontal. • Standard tamping rod: 16 mm (5/8 in.) in diameter and 400 mm (16 in.) to 600 mm