• CBR Field Test Set

CBR Field Test Set

ASTM D4429

The CBR field test set is designed for making CBR determinations in the field and is built around a modified H-4156 Load Frame. CBR field testing can quickly yield a realtive strength determination without having to rely on lab tests. Field tests involve forcing a piston into the soil and comparing the depth of penetration in relation to the load placed on the piston. Typically, the reaction load used for field testing is a heavy piece of equipment, such as a loaded dump truck. Gear Box is 2-speed model with a 10,000lbf (45kN) capacity and 3.5 inches of lift. The use of the extension and connector set provides sufficient flexibilty for almost any type of height requirement. Complies with ASTM D4429.


Below is a list of the components of the Field CBR Test Kit, which can also be purchased individually.


Replacement Parts
P/N   Name
HU4156J-000  Two-Speed Mechanical Replacement Jack
HU4156SB-000 Swivel Base
HU4454.020 Load Ring with Dial Gauge - Load Ring with analog dial indicator,
lbf-2200, kN-10.0, kgf-1000
HU4454.050 Load Ring with Dial Gauge - Load Ring with analog dial indicator,
lbf-5500, kN-25.0, kgf-2500
HU4152F.1-00 CBR Extension Set
HU4152F.2-00 CBR Connector Set
HU4158.1-000 Dial Indicator, 1.0" range x 0.001"
HU4466.10-00 Extension Point Set of 2, 1" Length
HU4152F.8-00 Steel Bridge Support
HU4179F.10 Surcharge Weight, 10lb, 10" dia.
HU4179-000 Slotted Surcharge Weight, 10 lb.
HU4179F.20 Surcharge Weight, 20lb, 8.5" dia.
HU4470-000 Magnetic Indicator Mount
HU4178F.4-00 Penetration Piston, 4"


CBR Field Test Set, includes:
HU4156J-000 1 2-sp. Gear Box, Handle and Platen
HU4156SB-000 1 Swivel Base
HU4454.020 1 2200 lbf Load Ring
HU4454.050 1 5500 lbf Load Ring
HU4152F.1-00 1 CBR Extension Set
HU4152F.2-00 1 CBR Connector Set
HU4158.1-000 1 Dial Indicator, 1.000" x 0.001"
HU4466.10-00 1 Extension Point Set of 2, 1" Lenght
HU4152F.8-00 1 Steel Bridge Support
HU4179F.10 1 Surcharge Weight, 10 lb, 10" dia.
HU4179-000 2 Slotted Surcharge Weight, 10lb
HU4179F.20 2 Surcharge Weight, 20 lb, 8.5" dia.
HU4470-000 1 Magnetic Indicator Mount
HU4178F.4-00 1 Penetration Piston, 4"