Conversion of In-situ to Laboratory CBR

The in-situ CBR jack assembly can be mounted in a simple conversion frame to measure CBR values in the laboratory. The frame is used with the jack, a suitable load ring, CBR mould and penetration piston.

Bracket and Adaptor. Dual Purpose Mounting Bracket for CBR Penetration Gauges EL24-9184/EL24-9186

Dual purpose mounting bracket for CBR penetration dial gauges. Allows gauge to be fixed to penetration piston or load ring.

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Cbr Penetration Piston (Adjustable).

As 24-9182 but with a coarse stem adjustment. This piston is particularly useful for in-situ testing.

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45kN (10000Lb) Capacity Mechanical Jack.

The body is corrosion protected and houses an enclosed worm and wheel gear. The gear ratio has been carefully selected to provide a handwheel speed that can be comfortably maintained, particularly with soils of high CBR value. A quick-release device in the screwjack allows the plunger to be rapidly adjusted prior to the test.

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Conversion Frame.

50kN conversion frame to adapt to mechanical jack for labrotary CBR tests. The frame is of a two-column construction with an overhead beam to accept the mechanical jack EL24-9290 and is supplied complete with stablising bar. 

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Penetration/Swell Dial Gauge ASTM.

1 in travel x 0.0005 in divisions. Complete with rack extensions and chisel edge anvil.

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Penetration Dial Gauge BS

Complete with rack extensions and chisel edge anvil.25 mm travel x 0.01 mm divisions. 

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Clamped Boss Load Ring - 28.0 kN

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