California Bearing Ratio
Description
Standard : IS 2720
Model No. : PIT-063
California Bearing Ratio Test Apparatus (CBR)
The California Bearing Ratio is used to determine the strength of subgrade soil and highway sub bases by using penetration testing method.
It is designed to test the cohesive property of the materials having particle size less than 19mm or as specified in the standards such as ASTM, BS or IS
Models Available
- Single Speed
- 3 Speed
- 6 Speed
- 12 Speed
CLICK HERE :- TO SEE THE SUITABILITY OF USING CALIFORNIA BEARING RATIO TEST TO PREDICT RESILIENT MODULUS
Other Detail
Primetek’s make CBR testing machine is composed of a sturdy two pillar type load frame with an adjustable upper cross beam driven by a powerful electromechanical force of maximum 50 kn capacity.
This machine is supported with high quality reduction gearbox to give the accurate output ( Speed). This CBR can provide the variable speeds such as 1.25mm per minute for single speed and 1.25, 1.5 & 2.5 mm per minute for Three speed machine.
Features
- Analog readout feature from dial Gauge
- Rapid Platen Adjustment through Rotary Switch
- Variable speed adjustments
- Highly accurate speed
- Load Calculation from Proving Ring
- Linear Displacement calculation from Dial Gauge
Technical Specification
Standard Load Values for CBR Test
| Penetration(mm) | Standard Load(kg) | Unit Standard Load(kg/cm2) |
| 2.5 | 1370 | 70 |
| 5 | 2055 | 105 |
| 7.5 | 2630 | 134 |
| 10.0 | 3180 | 162 |
| 12.5 | 3600 | 183 |
Supplied With
The CBR Load Frame Consists of :
- Robust and Sturdy Load frame.
- 25 mm Dial gauge and 50 kn proving ring for load calculation
- CBR Mould with tripod, Swell plates and penetration Piston
- Compacting rammer of 2.69 & 4.89 kg.
- Surcharge weight: Annular and Slotted.
- User Manual and warranty certificate
- Calibration test report.
