Corelok® Specifications
The CoreLok® is a system for sealing asphalt samples so that the sample densities may be measured by water displacement methods. Samples are automatically sealed in specially designed puncture resistant polymer bags. The nominal density of the bag is predetermined at the factory. Densities measured with the Corelok system are highly reproducible. The Corelok system consists of a vacuum chamber and bags designed for sealing beam samples and four or six inch diameter laboratory and field samples. The core and bag are placed inside the vacuum chamber, which is completely evacuated before the bag is sealed. The air is removed from the chamber by a heavy-duty vacuum pump. A vacuum control automatically determines the amount of time that the pump operates before the bag is sealed.
Mechanical/Electrical
» 1.25 hp rotary pump
» Vacuum level 29.95 in. Hg, 1TORR, 1.33 MBARS
» Vacuum oil non-detergent mineral oil of viscosity class ISO VG 32
» Metal chassis
» 16 inch (406mm)automatic wire sealing strip
» Weight 121 pounds (55 Kg)
» Shipping weight 145 pounds (64 Kg)
» Standard 110 volt 50/60 Hz or optional 220V 50/60 Hz
» Chamber size 16.75"X7.25"X19.6"" (Dome), 432X432X178mm
» Footprint 2.75 Sq. Ft
Performance
Precision as determined by repeated testing of five 6˛ cores and five 4˛ cores is 0.002 gr/cm3 for both core sizes.
Bag Specifications
» Impermeable to water.
» Flexible to conform to core surface irregularities.
» Puncture-resistant.
» Two different sizes for different sample thickness.