Department of Civil Engineering and Construction
New MTS Dynamic Mechanical Material Test System Commissioned. 
Acquired through research grants by 
Dr. Dinesh Katti and Dr. Kalpana Katti
Click Above to See Pictures of the Device

Geotechnical Engineering Laboratory

A glimpse:

The triaxial test system consists of a 22,000-lb capacity computer controlled load frame. The frame has a wide range of speeds. The data acquisition and control system allows us to program a large variety of loading conditions. The triaxial cell can accommodate samples up to a diameter of 4 inches. The cell has digital transducers for measuring cell pressure, backpressure, pore water pressure, submersible load cell and volume change. The transducers are connected to a high-speed data acquisition system. The master control panel used for applying cell pressure and back pressure can also be used for conducting permeability tests. A deaired water system is attached to the master control panel. 

The load frame can also be used for conducting tests on geosynthetic samples and other materials.

Automated Direct/Residual Shear Device

The system comprises of a square shear box with digital transducers for electronic data acquisition of shear displacement, vertical displacement and shear force. 

We also have a conventional direct shear device with dial gages and proving ring.


Bench Top Consolidometer with Digital Transducer

We have four bench top consolidometers with digital transducers.

In addition, we have four consolidometers in free standing frames with dial gages.

Data Acquisition System

The high-speed data acquisition system shown on the left is used for acquiring data from the triaxial shear, direct shear and the consolidation apparatus shown above. At this time, the system can scan eight channels simultaneously. The system is rated at up to 10000 scans per minute.

We have developed our own data acquisition software to allow us to perform specialized tests for research.

Other Equipment

In addition, we have equipment for conventional geotechnical engineering laboratory tests, including:

Mechanical analysis, Atterberg limits, Compaction, Premeability etc.

Pictures Below:
Students in CE 316 Soil Mechanics Course Conducting Laboratory Experiments in the Geotechnical Laboratory.
For more information, contact:
Dr. Dinesh R. Katti, P.E.
Department of Civil Engineering
North Dakota State University
Fargo, ND 58105

e-mail: Dinesh.Katti@Ndsu.Nodak.Edu

Go to Advanced Materials Laboratory