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Particle Arrangements and Differential Imbibitional Swelling in Deformed or Deposited Kaolinite-Illite Clay

Published online by Cambridge University Press:  01 January 2024

Richard E. Tressler  and
William O. Williamson
Richard E. Tressler
Affiliation:
The Pennsylvania State University, University Park, Pennsylvania, USA
William O. Williamson
Affiliation:
The Pennsylvania State University, University Park, Pennsylvania, USA
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Abstract

A fine-grained kaolinite-illite clay, in which planar particle orientation resulted from filtration or plastic deformation, swelled differentially when liquid water was imbibed by test pieces already in the plastic state. Swelling was greater perpendicular than parallel to the plane in which the clay platelets tended to be arranged. Filtration, in contrast to deformation, gave test pieces that swelled more rapidly and extensively. The slipbands, present only in plastically deformed test pieces, restricted the swelling. They were arranged diagonally to the plane in which the clay platelets tended to lie. The plastically deformed test pieces showed enhanced expansion perpendicular to this plane when they were made successively thinner by compression under a cylindrical roller. This was attributed to improved planar orientation of the clay platelets.

Type
General Session
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 13 , February 1964 , pp. 399 - 410
Copyright
Copyright © Clay Minerals Society 1964

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Footnotes

Contribution No. 64-21 from the College of Mineral Industries, The Pennsylvania State University, University Park, Pennsylvania.

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