Friday, November 16, 2012

Triaxial Test Apparatus Nearly Ready for Standard CD & CU Tests

Pressure supply & control system for triaxial test apparatus has been completed and also calibrations for load cell, LVDT for deformation measurement, and pressure sensor for pore water pressure measurement are completed. Thus FYP students are ready to perform standard triaxial tests on compacted residual soil, although final checking of pressure tube fittings and measurement system needs to be carried out by actually pressurizing and consolidating a soil specimen in the triaxial cell.

At the moment, a data logger which is not connected to computer is used to take all measurements. However, a system of computer controlled measurements and pressure changes using D/P air regulator needs to be introduced to perform more sophisticated triaxial tests such as a cyclic undrained triaxial test.

The picture below shows a control system and loading frame for standard triaxial test that was built solely by FYP student and technical staff of FES laboratory.

Should you be interested in these apparatus, please send your mail to utar.earthquake@gmail.com

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