Hydrometer Void Content Apparatus
The hydrometer void content apparatus is used to determine the uncompacted void content of fine aggregate samples. It provides an indication of the workability, angularity and sphericality of the aggregate in a mixture in which it is used.
The hydrometer void content apparatus includes a 100 ml brass measure, funnel with special jar, funnel stand and a glass plate for calibration.
ASTM C 1252, PTM 527
AASHTO TP-33, NAA Method A