Some physical properties of New Zealand "loess"

Abstract

The extensive deposits generally referred to as "loess" which are found in Canterbury and Otago on rolling country near the eastern seaboard have been examined for such physical properties as particle-size distribution, porosity, permeability, and settlement under load in both the dry and saturated condition. Comparisons have been made with overseas loess deposits where data are available. The greater part of the material examined is of finer texture and lower porosity and permeability than continental loess, but deposits which correspond more closely to the overseas loess do, however, occur. At natural moisture content, the "loess" will generally provide a good foundation for structures, and, even in the saturated state, settlements will be small unless the more porous deposits are involved.