Plastic properties

Kirchhof, Gunnar (2007). Plastic properties. In Rattan Lal (Ed.), Encyclopedia of soil science 2nd ed. () New York, United States: Taylor & Francis. doi:10.1081/E-ESS-120001587

Author Kirchhof, Gunnar
Title of chapter Plastic properties
Title of book Encyclopedia of soil science
Place of Publication New York, United States
Publisher Taylor & Francis
Publication Year 2007
Sub-type Chapter in textbook
DOI 10.1081/E-ESS-120001587
Edition 2nd
ISBN 0849350514
Editor Rattan Lal
Language eng
Subjects 0503 Soil Sciences
Abstract/Summary Application of a force to soil can result in an elastic, non-permanent, deformation that only lasts while the force is applied or a plastic, permanent deformation that persists after the load is removed. The latter may, or may not result in a decrease in the soil volume. How easily and how much the volume changes is determined by the soil's plasticity. It is an important factor influencing ease and outcome of soil tillage operations. Soil plasticity is caused by the lubricating film of water surrounding soil particles that allow the soil to change shape without rupturing upon application of forces. As an inherent soil property it is governed primarily by the surface area of the soil particles. Plasticity increases with increasing clay content, activity of clay minerals, position of the adsorbed cations in the lyotropic series and organic matter content.
Keyword Soil plasticity
Q-Index Code BX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes 1959 pages

Document type: Book Chapter
Collection: School of Agriculture and Food Sciences
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Created: Tue, 21 Sep 2010, 09:17:20 EST by Ms May Balasaize on behalf of Faculty Of Nat Resources, Agric & Veterinary Sc