Compositions: coating or plastic – Coating or plastic compositions – Alkali metal silicate containing
Patent
1990-10-17
1991-11-26
Taylor, Dennis L.
Compositions: coating or plastic
Coating or plastic compositions
Alkali metal silicate containing
405263, C04B 1204
Patent
active
050674161
ABSTRACT:
A process for producing a barrier seal in soil which must be in contact with an acidic water which has a pH below 5.5, wherein a trench is excavated in the soil and the trench produced is filled with a sealing concrete including water, a clay and an acid-resistant granulate with self-filtering properties, the sealing concrete additionally including an aqueous solution of sodium and/or potassium silicate and is devoid of any acidic or acid-generating matter liable to form a silicic acid gel with the silicate. The proportion of sodium and/or potassium silicate incorporated in the sealing concrete is sufficient to give rise to the formation of a leakproof local barrier when the sealing wall is locally subjected to the percolation of acid water originating from the surrounding soil.
REFERENCES:
patent: 2240393 (1941-04-01), Dietz
patent: 3094846 (1963-06-01), Peeler
patent: 3146828 (1964-09-01), Mann
patent: 3335018 (1967-08-01), Peeler
patent: 3835926 (1974-09-01), Clement
patent: 3837872 (1974-09-01), Conner
patent: 4056937 (1977-11-01), Suzuki
Delmas Francis M. L.
Gandais Michel A. G.
Sondages Injections Furages "S.I.F." Enterprise Bachy
Taylor Dennis L.
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