Composition and method for dual function soil grouting excavating or boring fluid
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United States of America Patent
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May 24, 2005
Grant Date -
Sep 5, 2002
app pub date -
Jun 13, 2001
filing date -
Feb 12, 1997
priority date (Note) -
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Abstract
An excavation fluid composition useful for enlarging a cavity in the earth includes a synthetic polymer and sodium silicate. The excavation fluid composition is formulated so as to enable the fluid in contact with unstable or sandy soils in the selected areas of the excavation to react and form silicate-based derivatives with lesser solubility, and movement and thus improve soil stability at the excavation wall.
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