UN METODO DE MEJORAR LA RESISTENCIA E IMPERMEABILIDAD DE SUELOS Y ESTRUCTURAS DE INGENIERIA

摘要

Method for improving the strength and impermeability of soils and engineering structures by forming a hydrogel composed of silicic acid and a cross-linked swellable organic polymer in or on the soil or structure treated. According to the invention an aqueous solution of a silicic acid gel precursor is contacted with a water-soluble gel-forming vinyl monomer in the presence of a redox polymerization catalyst system; a cross-linking agent for the polymer obtained; an organic polycarboxylic acid; optionally an additive which modifies the structure of the gel formed and optionally a filling agent. By the method of the invention a homogeneous, stable, strong and elastic gel is obtained.