The CBR test is used for determining the relative bearing ratio and expansion characteristics under known surcharge weight of base, sub- base and sub grade soil for the design of roads, pavements and runways.
The apparatus consists of
LOAD FRAME: Load Frame motorized capacity 50kN (5000kgf) having 3 rates of strains i.e. 1.25, 1.5 and d 2.5 mm/ minutes. It consists of a screw jack with a detachable handle. The lower platen moves up and down. The top bracket is adjustable for vertical clearance and has an adaptor for connecting standard Proving Rings. A dial gauge mounting bracket is provided on one of t h e two pillars. It is suitable for operation on 220 volts, 50Hz, single phase A.C supply. The apparatus is supplied with complete accessories.

The CBR test is used for determining the relative bearing ratio and expansion characteristics under known surcharge weight of base, sub- base and sub grade soil for the design of roads, pavements and runways.
The apparatus consists of
LOAD FRAME: Load Frame motorized capacity 50kN (5000kgf) having 3 rates of strains i.e. 1.25, 1.5 and d 2.5 mm/ minutes. It consists of a screw jack with a detachable handle. The lower platen moves up and down. The top bracket is adjustable for vertical clearance and has an adaptor for connecting standard Proving Rings. A dial gauge mounting bracket is provided on one of t h e two pillars. It is suitable for operation on 220 volts, 50Hz, single phase A.C supply. The apparatus is supplied with complete accessories.