The Role of Dispersion in the Slaking of Intact Clay

Y Moriwaki; JK Mitchell

doi:10.1520/STP26994S

SYMPOSIA PAPER Published: 01 January 1977

STP26994S

The Role of Dispersion in the Slaking of Intact Clay

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A series of slaking tests was conducted to identify those conditions under which dispersion is the dominant mechanism of clay slaking. Variables investigated were clay mineralogy, adsorbed cation ratios (sodium/calcium), consolidation fluid electrolyte concentration, water content, and slaking fluid electrolyte concentration.

All clays with sodium ions occupying more than 10 percent of the exchange complex exhibited a dispersion slaking regardless of other conditions, provided the electrolyte concentration of the slaking fluid was lower than 10⁻³ N.

Observed slaking behavior can be classified into four modes: (a) swelling slaking, (b) dispersion slaking, (c) surface slaking, and (d) body slaking.

Author Information

Moriwaki, Y

Woodward-Clyde Consultants, Oakland, Calif.

Mitchell, JK

University of California, Berkeley, Calif.

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Details

Developed by Committee: D18

Pages: 287–302

DOI: 10.1520/STP26994S

ISBN-EB: 978-0-8031-4696-9

ISBN-13: 978-0-8031-0192-0

The Role of Dispersion in the Slaking of Intact Clay

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