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UNCONFINED COMPRESSION TESTER SPRING TYPE
CASE PACK 1
The apparatus has been developed on the basis of the design of British Building Reasearch Station by L.F. Cooling and H.Q. Golder. It is a simple and portable apparatus and is used in both laboratory and field for testing unconfined compressive strength of undisturbed specimen of cohesive non-fissured soils taken from a bore hole, a trial pit on opan excavation. A specimen of 38 mm dia x 76 mm long is placed in between two plates and the load is applied by means of hand operated lead screw which expands a calibrated spring. The load deformation curve is plotted autographically by a recording pencil moving across the chart. Strength figurs can be determinated from the completed chart by super imposing a specially calibrated transparent mask over the chart.