Composition and method for a dual-function soil-grouting excavating or boring fluid
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United States of America Patent
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Jun 19, 2001
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app pub date -
Feb 12, 1998
filing date -
Feb 12, 1997
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Abstract
Compositions and methods useful in creating boreholes, tunnels and other excavations in unstable soils and earth formations, especially those composed partially or wholly of sand, gravel or other granular or permeable material are disclosed. The fluids include a polymer, and a soluble silicate ion source. The fluids of the invention, when used according to the methods of the invention, have unique dual functionality as excavating fluids and as earth-grouting or soil-hardening compositions.
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