California Bearing Ratio

Listing ID #3788922

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Supply Type Exporter, Supplier
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Product Details

The CBR test 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 mm/min. 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.

SSO-1020

Laboratory California Bearing Ratio
Test Apparatus, Motorised
IS: 9669 - 1980
IS: 2720 (Part 16) - 1979
The apparatus consists of

SSO-1020001

Mould 150 mm ID x 175 mm high Gun Metal

SSO-1020002

Mould 150 mm ID x 175 mm high M. steel

SSO-1020003

Metal Tripod for Dial Gauge

SSO-1020004

Penetration Piston 50 mm face dia

SSO-1020005

Circular Metal Spacer Disc with detachable handle, 148 mm dia x 47.7 mm height

SSO-1020006

Perforated Plate 148 mm dia, with adjustable Stem and Lock Nut

SSO-1020007

Soaking Tank for six CBR mould

SSO-1020008

Extension Collar 150 mm ID x 50 mm high

SSO-1020009

Annular Metal Weight 2.5 kg, 147 mm dia with 53 mm dia central hole

SSO-1020010

Slotted Metal Weight, 2.5 kg, 147 mm dia, with 53 mm dia slot

SSO-10200011

Swell Plate

SSO-10200012

Cutting Collar

SSO-10200013

Loading load frame foe CBR hand operated 2 speed

SSO-1021

California Bearing Ratio Test Apparatus, Field Type
IS: 2720 (Part 31)
The use of the in-situ CBR apparatus on large road construction projects has increased considerably in recent years. This apparatus, mounted on a rolled steel joist cantilevered from the back of the truck or fitted to the underside of a mobile frame, can be used to determine the bearing capacity of soils quickly and efficiently. This method of testing in-situ, using piston penetration, is useful for determining the load carrying capacity in the field, when the in-place density and water contents are such that the degree of saturation is 80 % or greater, when the material is coarse grained and cohesion less so that it is not affected by changes in the water content and when the material has been in place.
It consists of:
Loading Jack with U-bracket, capacity 50 kN (5,000 kgf). This is specially designed for use with Field CBR test apparatus. It consists of a hand operated, two speed, screw jack fitted with a U-bracket. A hexagonal adapter is provided to fix a proving ring. A thrust bar, which passes through the U-bracket, is screwed on to a proving ring (supplied at extra cost) which protects the proving ring when the loading is eccentric.
Swivel Head Swivel Head
Penetration Piston 50 mm dia threaded at the upper end, to connect to the various lengths of extension sleeves, through a connector
Extension Set consisting of 1 length of 5 cm, 2 lengths of 10 cm, 1 length of 30 cm, 1 length of 50 cm and a length of 100 cm used as spacers between the proving ring and penetration piston. The lengths are machined from steel tubing
Connector Set has eight connectors for coupling the penetration piston and proving ring assembly, either directly or through extension pieces
Datum Bar Assembly consisting of two stands and 1 m long Bar
Adjustable Bracket for mounting the Dial Gauge
Annular Metal Weight 5kg, 250 mm dia with 53 mm dia central hole
Slotted Metal Weight 5kg, 215 mm to 250 mm dia with 53 mm dia slot, 2 Nos.
Slotted Metal Weight 10kg, 215 mm to 250 mm dia with 53 mm dia slot, 2 Nos.
Optional Extra
Dial Gauge 0.01x25 mm
Proving Ring 50 kN (5,000kgf) capacity

Company Details

Our Products are also available with various universities on Annual Rate Contract Concentrating on the various essential factors, Shivam Instruments, an ISO 9001:2000 certified organization, have developed and designed lab equipment, pharmaceutical lab equipment which are widely used in research centers, hospitals as well as labs. As a manufacturer and exporter of lab instruments, we have captured a wide market share. With an dedicated attitude and focused approach, our team has created marvels in the industry. Under the leadership and motivation of our founder member, we have successfully laid the foundation of our organization. Our product range is - Laboratory Instruments | Food Processsing Equipments | Electronic Testing Instruments | Pharmaceutical Equipments | Paint, Petroleum Products | Coal Testing Instruments | Oil & Petroleum Testing Instruments | Soil Testing | Cement, Lime, Plaster & Mortar | Concrete | Sand And Aggregates | Tiles | Rock | Geotextile
Our products are highly precise and accurate and have been developed under complete supervision of experts and professionals. The quality, services & effectiveness of our products have brought a tremendous response for our clientele. Our products are not only durable and cost effective but also fulfil the purpose they are meant for. Tested and verified on several aspects, we have provided the most superior quality product to our clients.