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Manual, moisture/density hammer meets ASTM and AASHTO specs. It incorporates a 5.5 lb (2.54kg) weight and a drop of 12" (305mm) with a 2" (51) face. Guide sleeve has four vent holes in each end of sleeve to release built-up air pressure. Machined steel, plated for rust resistance. Features resilient rubber ball handle.
Features fully-automated, incremental pressure control, freeing up technician time
Direct shear test-specific enhancement to Humboldt's NEXT software
Produce five-point moisture density relationship test results in about 5 hours
Unit consists of brass cup, cam mechanism, carriage and crank mounted on a hard rubber base.
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