Injection grouting

Hydraulic and earth engineering – Earth treatment or control – Chemical

Reexamination Certificate

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Details

C405S263000, C405S267000, C516S111000, C516S082000, C516S079000

Reexamination Certificate

active

10644488

ABSTRACT:
The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is from about 2:1 to about 100:1. The invention also relates to a method of sealing a leaking part or cavity, and method of cutting off a liquid flow in a leaking part or cavity. The invention further relates to a composition for injection grouting and a method for preparing such composition.

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Iler, Ralph K., “The Chemistry of Silica,” John Wiley & Sons, 1979, pp. 312-313.

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