FUNDAMENTAL STUDY OF CLAY: VIII, A NEW THEORY FOR THE PLASTICITY OF CLAY-WATER MASSES

In spite of the large amount of work which has been done in the field of plasticity, none of the explanations are entirely fitted to the facts when dealing with clay‐water systems of pasty consistency. As there is now a considerable amount of data on carefully fractionated and cleaned kaolinite, it...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1948-08, Vol.31 (8), p.236-240
Main Author: Norton, F. H.
Format: Article
Language:English
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Summary:In spite of the large amount of work which has been done in the field of plasticity, none of the explanations are entirely fitted to the facts when dealing with clay‐water systems of pasty consistency. As there is now a considerable amount of data on carefully fractionated and cleaned kaolinite, it has been possible to substantiate a new mechanism of plasticity which is termed the “stretched‐membrane theory.” This theory accounts for the plasticity of the clay masses by the compression of the whole due to the surface envelope of water which tends to push the particles together by capillary forces. This theory is shown to be reasonable by both direct and indirect proof; however, it in no way changes the general picture of the forces acting between the particles in a suspension as portrayed by the colloid chemists.1,2
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1948.tb14300.x