Controlling the curing time of alkali metal silicates using derivatives of glyoxal
AssigneeDiamond Shamrock Corporation
InventorsLarry J. Powers, Thomas M. Vickers
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Abstract
A liquid alkali metal silicate composition comprises water, an alkali metal, e.g., sodium silicate, and as curing agent for said alkali metal silicate, a derivative of glyoxal which is 2,3-dihydroxy-1,4-dioxane or glyoxal trimer. The composition optionally contains a Group I-III metal salt, e.g., calcium chloride and hydrogen peroxide. It is easily pumpable and injectable at a temperature of 100.degree. F. or higher.
Claims12
In a liquid alkali metal silicate composition curable to a solid upon standing and comprising water, an alkali metal silicate and silicate acidogen, the improvement which comprises incorporating as the silicate acidogen, a glyoxal derivative which is 2,3-dihydroxy-1,4-dioxane or glyoxal trimer, whereby gelling of the resulting composition is inhibited sufficiently so that it is easily pumpable at an application temperature of 100.degree. F. or higher.
In a method for stabilizing soil which comprises contacting said soil with a sole liquid composition comprising 10 to 70 percent by volume of an aqueous alkali metal silicate having an alkali metal oxide:silicon dioxide ratio of 1:3.0-4.0, an acidogen for the silicate;
- and the balance water, the improvement which comprises employing as the silicate acidogen a glyoxal derivative which is 2,3-dihydroxy-1,4-dioxane or glyoxal trimer, whereby gelling of the resulting composition is significantly inhibited by comparison to that of a liquid alkali metal silicate-glyoxal composition and said composition is easily pumpable at an application temperature of 100.degree. F. or higher.
Dependencies are inferred from the claim text.