California Bearing Ratio (CBR) test was developed by The California State highway department. CBR Load Frame is used to evaluate the potential strength of course materials, for use in road construction.

The CBR Load Frame Consists of :
ZI 3066A Load Frame, 50kn ( 5000 kgf) Capacity, 3 Speeds
ZI 3066B Zinc Coated Mild Steel Mould 150mm ID x 175mm high
ZI 3066C Perforated Base Plate for ZI3074- 2 Zinc Coated Mild Steel Mould
ZI 3066D Zinc Coated Mild Steel Extension Collar, 150mm ID x 50mm high
ZI 3066E Penetration Piston, 50mm face dia

ZI 3066F Adjustable Bracket, for Penetration Dial Gauge
ZI 3066G Circular Metal Spacer Disc. With detachable handle, 148 mm dia x 47.7 mm high time.
ZI 3066H Annular Metal Weight, 2.5kg, 147mm dia with 53 mm dia central hole
ZI 3066I Perforated Metal Weight 2.5 kg. 147mm dia, with 53mm dia soft

ZI 3066J Perforated Plate, 148mm dia, with adjustable stem and lock nut
ZI 3066K Metal Tripod for Dial Gauge
ZI 3066L Cutting Collar
ZI 3066M Rammer 2.6kg, 310mm controlled drop
ZI 3066N Rammer 4.9kg, 450mm controlled drop
ZI 3066O Proving Ring Capacity 50 KN
ZI 3066P Dial Gauge, 25 mm travel, 0.01mm least count Optional Extras:
ZI 3066Q Annular Metal Weight 5 kg, 147mm dia with 53 mm dia central hole
ZI 3066R Slotted Metal Weight 5 kg 147mm dia with 53mm dia slot