Flexible grouting composition
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United States of America Patent
Stats
-
Apr 30, 1996
Issued Date -
N/A
app pub date -
Jul 14, 1995
filing date -
Oct 20, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A grouting composition for sealing boreholes or other cavities comprising 90.0-99.99% water swellable clay and 0.01-10.0% gelling agent. The grouting composition is mixed with fresh water to provide an easily placed, low cost, low permeability sealing composition. A preferred grouting composition contains 98-99% sodium bentonite and 1-2% cement. In use 50 pounds of the preferred grouting composition is mixed with 27-38 gallons of fresh water to produce a grouting composition containing 13.7-18.2% solids and having a fluid density equal to or greater than 9.0 lbs/gallon with a Marsh funnel viscosity equal to or greater than 50 seconds.
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Cited Art Landscape
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