Test Method Title
Bulk Density (“Unit Weight”) and Voids in Aggregate
Reference Number
AASHTO T 19
Material
Aggregate
Test Property
Bulk Density Unit Weight Voids
Description of Test
The dry aggregate sample is placed into a calibrated measure 1/3rd full and rodded the depth of the layer 25 times. This process is repeated a second and third time filling the measure. The measure is then weighed, and the mass per unit volume determined. If the void content is desired, the specific gravity of the aggregate is measured and used with the unit weight to calculate the void content as a percent.
Number of Test Specimens
1
Test Specimen Size
Typically 14L, but determined by maximum aggregate size.
Keywords
Bulk, Density, Unit, Voids, Weight