Influence of Eroding Solution Composition on Dispersive Behavior of a Compacted Clay Shale

CT Statton; JK Mitchell

doi:10.1520/STP27003S

SYMPOSIA PAPER Published: 01 January 1977

STP27003S

Influence of Eroding Solution Composition on Dispersive Behavior of a Compacted Clay Shale

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The pinhole test was used to determine the boundaries between dispersive and nondispersive behavior for a clay shale with respect to acidity and salt concentration in the erosion solution. It was found that, for this soil, a decrease in pH of the eroding water to less than about 4 (using hydrochloric acid) or an increase to greater than about 11 (using calcium hydroxide or sodium hydroxide) caused a change from dispersive to nondispersive behavior. Similarly, increasing the salt concentration of the eroding water at its natural pH of 6.3 to 0.1 N calcium chloride or 0.5 N sodium chloride caused erosion to stop.

Author Information

Statton, CT

Woodward-Clyde Consultants, Clifton, N.J.

Mitchell, JK

University of California, Berkeley, Calif

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Details

Developed by Committee: D18

Pages: 398–407

DOI: 10.1520/STP27003S

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

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

Influence of Eroding Solution Composition on Dispersive Behavior of a Compacted Clay Shale

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