It is generally understood that clays and other compressible soils can be subject to long-term consolidation under the loads imposed by foundations and above ground structures. Also that settlement may occur even if the applied pressure is within the safe bearing capacity of the soil.

The One-dimensional Consolidation test is used to determine the consolidation characteristics of soils of low permeability. Tests are carried out on specimens prepared from undisturbed samples. Data obtained from these tests, together with classification data and a knowledge of the soils loading history, enables estimates to be made of the behaviour of foundations under load.

Various methods of measuring vertical settlement can be supplied. These range from dial gauges to displacement transducers. All devices comply with the accuracy specified in BS 1377, ASTM D2435 and D4546. Displacement transducers are supplied with a calibration certificate. The table below shows the range of devices available for fitting to the EL25-0402 Consolidation Frame. Transducers are supplied complete with mounting brackets as required.

Model No. Desc
25-0440 Vertical Dial Indicator, Metric
27-1649 Displacement tranducer

Geotechnical laboratories make extensive use of computers and automated testing, and we offer specially written software packages designed to record and analyse test data. Presentation of results is in test report format, giving geotechnical engineers total control over all areas of analysis where an engineering judgement is required.

Model No. Desc
27-1770 DS7.1 One-Dimensional Consolidation Software
27-1500/01 GDU 8 channel data acquisition unit