Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1981-08-05
1985-01-08
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Chemical
405263, 524808, 523132, E02D 312
Patent
active
044924941
ABSTRACT:
The invention relates to a process for stabilizing an aqueous gel-forming system comprising one or more water-soluble acrylic monomer as gellifying agent, methylenebis-acrylamide co-monomer and/or one or more mono- or bivalent aldehyde as cross-linking agent, a redox catalyst system containing an alkali metal and/or ammonium persulfate as oxidizing component along with one or more amine compound as reducing component, furthermore optionally one or more water-soluble polymer for adjusting the viscosity of the solution and/or modifying the gel structure. According to the invention said gel-forming system is stabilized by saturating it with molecular oxygen.
The invention relates further to a process for improving the strength and impermeability of particulate materials and/or solid articles. According to the invention an aqueous gel-forming system, stabilized as discussed above, is applied into or onto the article to be treated or into the surroundings thereof, and oxygen saturation of the gel-forming system is suspended at an appropriate time.
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Csanda Ferenc
Czerny Gyozo
Nagy Gabor
Szekely Tamas
Foldmero es Talajvizsgalo Vallalat
Katona Gabriel P.
Magyar Tudomanyos Akademia Termeszettudomanyi Kutato Laboratoriu
Taylor Dennis L.
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