Vacuum Density Tester

This instrument is used to measure the voids in super pavement asphalt mixtures, horseshoe grease crushed stone asphalt mixtures, and coarse grained asphalt mixtures. It is used to seal asphalt specimens and calculate the density of asphalt specimens by the water displacement method. The sample is automatically sealed in a specially designed, puncture-proof polymer bag. The density values measured by the vacuum density tester are reproducible and highly accurate. The results are independent of the material and shape of the specimen.