Alat Sipil

Percentage Refusal Density (PRD) is defined as the ratio of the initial dried bulk density of the sample to the final density (refusal density) expressed as a percentage, The sample bulk density is detemined by weighing in air and water, It is the heated in a split mould and compact ed to refusal using a vibrating hammer. The final density is obtained by weighing air and water..
Vibration Hammer
Suitble for compaction asphalt samples.
PRD Split Mold and Base
Diameter 150 mm
Smal Tamping Foot.
102 mm Diameter,
Large Tamping Foot
146 mm Diameter
300 mm Shank
For Tamping Foot.