Lab Services: Aggregate testing

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Test Method Title

Standard Test Method for Bulk Density (Unit Weight) and Voids in Aggregate

Reference Number

ASTM C29

Material

Aggregate

Test Property

Unit weight, Weight per unit volume, voids

Description of Test

The dry aggregate sample is placed into a calibrated measure one-third 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.

Preferred Test Sample Size

Number of Test Specimens

1

Test Specimen Size

Typically 14L, but determined by maximum aggregate size.

Keywords

Bulk, Density, Unit, Weight, Voids