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Separation of pumice from soil mixtures

Separation of pumice from soil mixtures

Abstract Pumice-rich deposits are found in a number of locations around the world, and in particular across large areas of the North Island of New Zealand. Pumice grains are commonly described as being lightweight, highly crushable, and vesicular in nature. These characteristics give rise to…

Letter to the Editor – Updating NZGS (2005)

Letter to the Editor – Updating NZGS (2005)

Updating NZGS (2005) Kevin Hind published a detailed article in the December edition of NZ Geomechanics News (p106 -110) including a call for an update of NZGS (2005). His main thrusts related to properties of fine-grained soils, in particular plasticity, and their classification highlighting inconsistencies…

A case for updating NZGS (2005)

A case for updating NZGS (2005)

Abstract The New Zealand Geotechnical Society’s “Guideline for the field classification and description of soil and rock for engineering purposes” (NZGS, 2005) has for 13 years been the standard by which soil and rock logging has been undertaken in New Zealand. NZGS (2005) does not…