NDLI: Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects

Content Provider	Springer Nature Link
Author	McDougall, John Kelly, Darren Barreto, Daniel
Copyright Year	2013
Abstract	Soil particles may be lost through dissolution, degradation or erosion. Regardless of the process of loss, there follows a change in soil structure both in terms of phase composition and grading. In this paper, the influence of size and amount of particle loss on phase composition at two stresses is investigated. The tests are performed on sand–salt mixtures, loaded in a modified permeation oedometer and subsequently dissolved. Changes in overall volume and void ratio are presented. Two significant observations about the volumetric consequences of particle loss can be made. First, overall volume changes are directly related to the amount of dissolved particles and to a lesser extent, the size of particle lost. Second, particle loss leads to an increase in void ratio; the magnitude of the increase is related to the amount of dissolved particles but appears not to be sensitive to either the size of particle lost or the pre-dissolution void ratio. Based on the observed response and a dissolution-induced void change parameter, the influence of different mechanisms of volume change is discussed. Tests were performed at two different vertical stresses with no discernible influence on void ratio change.
Starting Page	619
Ending Page	627
Page Count	9
File Format	PDF
ISSN	18611125
Journal	Acta Geotechnica
Volume Number	8
Issue Number	6
e-ISSN	18611133
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-02-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dissolution Laboratory testing Micromechanics Particle loss Geoengineering, Foundations, Hydraulics Continuum Mechanics and Mechanics of Materials Geotechnical Engineering & Applied Earth Sciences Soil Science & Conservation Soft and Granular Matter, Complex Fluids and Microfluidics Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Geotechnical Engineering and Engineering Geology

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