Humboldt Catalog - Soil-Field Section - Comlibris

Soil— Field
14
Shear Strength, CBR
1.800.544.7220 • www.humboldtmfg.com
D u a l - M a s s D y n a m i c C o n e P e n e t r o m e t e r s
H-4218B DCP (pg. 15) in use
Dual-Mass Dynamic Cone Penetrometer— H-4219
The H-4219 is designed in full compliance with the U.S. Army Corps
of Engineers specifications for weight and design. Its heavy-duty
design utilizes threaded connections for accurate, positive operation
during test procedure. It features a machined taper and grooves on
bottom of hammer mass, which significantly aids in easier lifting of
the mass and safer operation. The H-4219 utilizes the original Corps'
design of 1 meter long drive rods and offers unique 6 and 9 meter
long drive rods for operations where augered holes are used to get
test data at extended depths. These one-piece long drive rods make
testing fast and efficient in these applications. The standard unit
includes: dual-mass slide hammer assembly, 1 meter drive rod with
hardened tip, 1 meter drive rod with disposable cone tip adapter,
100 disposable tips, vertical scale, go, no go gauge, all necessary
wrenches, user manual with spreadsheet software template and
crush-proof Pelican carrying case. Additional disposable cones,
adapters, and hardened points are available.
Deluxe, Dual-Mass DCP— H-4219D
Same as the H-4219, but comes with (2) 24" extension rods.
Developed by the Army Corps of Engineers,
Dynamic Cone Penetrometers (DCPs) provide
a low-cost, efficient test method for quickly
determining in-situ CBR values of pavement
base, subbase and subgrades. They can readily
be used for depths up to 30" and up to 6' with
optional drive rods and extensions. All Models
comply with ASTM D6951 specifications and
come with a chart to compute CBR values, as
well as an Excel spreadsheet template, which
automatically charts the test results. DCPs
cover a CBR range from