California Bearing Ratio Test (Field Type)

About California Bearing Ratio Test (Field Type)

IS2720(PARTXXXI)1969.

In recentyears i t has become importanttoknowC.B.R.valuesinsitu.It is useful in determining the load carrying capacity in the field when in placedensityandwatercontentsare such that the degree of saturation is 80% of greater, when material is cohesionless and coarse grained, suchthatitis noteffective by changesin water contents and when the material hasbeen in place for considerable theloading is effected by means of amechanical load frames which can be fixed to the under side of a truck

Specification:

Mechanicalscrewloadingjack,10,000

kg.Capacitywith u-bracket and swivel head.Penetrationpiston, 50mm dia.Threadedattheupperend.Extensionrodsconsistingof2 lengths5cm.glengths10cm.1length30cm.,1length50cm.and1length100 cm. used asspacersbetween the provingring andpenetration piston. The lengths aremachinedfrom steel tubing. Connector set, has eight connectors for coupling thepenetration piston and proving ringassembly either directly or through extensionpieces. Dial gauge support of seamless pipe constructions.Itstands30cm high and 45 cm. Wide at the base.Provided with a quick release screw type clamp capable of slidingandlocking anywherealong 2 meter length of thebridge. Supplied with annular metal weight 5 kg., 250mm dia with 53 mm dia centralhole,slottedmetal weight5kg.,215mmto250mmdiawith53diaslot2nos.

Accessories:

DialGauge0.01mmx25mm.

Highsensitivityprovingring5000kgcapacitywithcalibrationchartandcarryingcase.