Electronic Measurement of Changes in the Volume of Pore Water During Testing of Soil Samples

Abstract
Two systems are described for electronic recording of changes in the volume of pore water for triaxial testing of soils: one using a miniature force transducer to measure by direct weighing; the other based upon a float system connected to the core of a differential transformer. Both systems provide measurement of volume change at least as accurately as may be obtained by visual reading of burettes graduated to 0.1 cm3, i.e. to ± 0.05 cm3.

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