This Powerpoint file is produced by the project: Developing Engaging, Effective and Enlightening Practical Experiments in Geotechnical Engineering, leaded by Prof. Mark Jaksa and supported by Australian Government Office for Learning and Teaching.With the exception of the Commonwealth Coat of Arms, and where otherwise noted, all material presented in this document is provided under Creative Commons Attribution-Noncommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc/4.0/.