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California Bearing Ratio Apparatus- Motorized (3 Speed)
Short info :
California Bearing Ratio-CBR Test Apparatus (CBR) is designed for performing laboratory evaluation of the California Bearing Ratio value of highway sub bases and subgrade and for the determination of strength of cohesive materials which have maximum particle sizes less than 19 mm (3/4”). The machine is designed to be mounted on a suitable bench and comprises of a robust and compact two column frame with adjustable upper cross beam. The frame is 50 kN capacity. Three test Rate of Strain speeds are provided 1.25 mm/min, 1.50 mm/min & 2.5 mm/min tests.
Wizard Auto 250 KN - Automatic Compression Testing Machines
Description:
CBR test apparatus is used for determining the relative bearing ratio and expansion characteristics under known surcharge weights of base, sub-base and sub grade soils for the design of roads, pavements and runways.
Tests can be conducted on all types of soils including sand, gravel and washed stone (passing through 20 mm IS Sieve).
The CBR test is used extensively in selection of materials and control of sub grades. The procedure consists of loading soil with a circular piston, 50 mm dia face and maintaining a penetration rate of 1.25 , 1.5 and 2.5 mm/m.
The load is noted and the results of test on natural or recompacted soils, in soaked and unsoaked conditions, can be compared with standard test results.
Features:
CBR test apparatus is used for determining the relative bearing ratio and expansion characteristics under known surcharge weights of base, sub-base and sub grade soils for the design of roads, pavements and runways.
Tests can be conducted on all types of soils including sand, gravel and washed stone (passing through 20 mm IS Sieve).
The CBR test is used extensively in selection of materials and control of sub grades. The procedure consists of loading soil with a circular piston, 50 mm dia face and maintaining a penetration rate of 1.25 , 1.5 and 2.5 mm/m.
The load is noted and the results of test on natural or recompacted soils, in soaked and unsoaked conditions, can be compared with standard test results.
Standards:
- IS:9669
- IS: 2720 (Part XVI)
- BS 1377
- BS 1924
- ASTM D 1883
Specifications:
The apparatus consists of:
- CBR Mould 150 mm ID x 175 mm high Gun Metal
- CBR Mould 150 mm ID x 175 mm high Mild steel(M.S.)
- Proving Ring Capacity 50kN With Dial Gauge 5mm
- Dial Gauge 25mm Range 0.01mm
- Tripod for Holding Dial Gauge
- Penetration Piston 50 mm face dia
- Circular Metal Spacer Disc with detachable handle, 148 mm dia x 47.7 mm height
- Swell Plate or Brass Perforated Plate 148 mm dia, with adjustable Stem and Lock Nut
- Extension Collar 150 mm ID x 50 mm high
- Annular Metal Weight 2.5 kg, 147 mm dia with 53 mm dia central hole
- Slotted Metal Weight, 2.5 kg, 147 mm dia, with 53 mm dia slot
- Cutting Collar-A detachable extension collar of 60 mm height
- Soil Rammer Heavy Compaction 4.89 kg weight and 457 mm height
- Soil Rammer Light Compaction 2.5 kg weight and 457 mm height
Products:
The apparatus consists of:
- CBR Mould 150 mm ID x 175 mm high Gun Metal
- CBR Mould 150 mm ID x 175 mm high Mild steel(M.S.)
- Proving Ring Capacity 50kN With Dial Gauge 5mm
- Dial Gauge 25mm Range 0.01mm
- Tripod for Holding Dial Gauge
- Penetration Piston 50 mm face dia
- Circular Metal Spacer Disc with detachable handle, 148 mm dia x 47.7 mm height
- Swell Plate or Brass Perforated Plate 148 mm dia, with adjustable Stem and Lock Nut
- Extension Collar 150 mm ID x 50 mm high
- Annular Metal Weight 2.5 kg, 147 mm dia with 53 mm dia central hole
- Slotted Metal Weight, 2.5 kg, 147 mm dia, with 53 mm dia slot
- Cutting Collar-A detachable extension collar of 60 mm height
- Soil Rammer Heavy Compaction 4.89 kg weight and 457 mm height
- Soil Rammer Light Compaction 2.5 kg weight and 457 mm height