Description
Ref. IS:9669, IS:2720 (PART XVI), BS 1377, EN 13286-47/ ASTM D 1883, AASHTO 193
The California bearing ratio test, (usually called as CBR test) is an empirical test developed in California. USA for determining the relative bearing ratio and expansion characteristics under known surcharge weight of base, sub-base and sub grade soils for the design of roads, pavements and runways. The CBR test is used extensively in selection of materials and control of subgrades.
The test can be performed in the laboratory on prepared samples or in-situ on location. It is important to appreciate that this test, being of an empirical in nature, is valid only for the application for which it was developed i.e., the design of highway base thickness.
Silent Features:
- Compact, Two Pillar design
- Rapid platen Adjustment
- Complete with Stabilizing Bar
- Options for mechanical or electronic measurement
- Suitable for operation on 220V, 50HZ, single phase, AC supply.
The equipment consists of the following replaceable parts:
VS 173-1 Load frame, 50KN capacity, Single speed
VS 23101 Mould- 150mm ID X 175mm high
VS 23102 Extension collar –150mm ID X 50 mm high
VS 23104 Penetration Piston 50mm face dia
VS 23105 Adjustable Bracket for penetration dial gauge
VS 23106 Circular Metal Spacer Disc, with detachable handle, 148mm dia X 47.7 mm high
VS 23107 Annular metal weight 2.5kg, 147 mm dia with 53 mm dia central hole
VS 23108 Slotted metal weight 2.5 kg, 147 mm dia, with 53 mm dia slot
VS 23109 Perforated Plate 148 mm dia, with adjustable stem and lock nut
VS 23110 Tripod for dial gauge
VS 23111 Cutting Collar
VS 22102 Rammer 2.6 kg, 310 mm Controlled Drop
VS 22202 Rammer 4.9 kg, 450 mm Controlled Drop
VS 374 Proving ring capacity 50KN with 5mm Dial Gauge
VS 172 Dial gauge 25mm travel, 0.01 mm least Count
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