A method for the renovation of liquid-conducting pipelines laid underground by injection of gelling waterglass solutions

摘要

method for sealing defects are not realizable in erdverlegten pipes by injection of a gelbildeten liquid from the rohrleitungsinnenraum in the defective areawhen the defective rohrleitungsabschnitt in both directions at one or two against the kanalwandung verspannbare (n) packer is limited and gelierende fluid in through the packer fluid injected rohrleitungsabschnitt, characterized by the fact that, as community a wasserglaslu00f6sung lbildende liquid used in the packer itselfbefore the break in the packer or the leak from the packer with esters or with an aqueous hu00e4rterlu00f6sung is mixed, one or more of the following components: alkalimetall - aluminat, salts of acidic water and cations, salts, glyoxal, organisc hey acids or their connections, the hydroxidionen binding property.