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Process for the consolidation of geological formations and loosened rock and earth masses
Process for the consolidation of geological formations and loosened rock and earth masses
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机译:巩固地质构造和松动的岩土体的过程
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摘要
This invention concerns a method of consolidating geological formations, heaped rock and earth masses by applying a polyurethane reaction system to the material to be consolidated. The reaction system comprises a polyisocyanate component and a polyol component wherein the polyol component contains about 5 to 50 wt.% of a special polyether with an OH number under about 100. This polyether is produced by the reaction of a compound having more than one reactive hydrogen atom per molecule and a molecular excess of a 1,2- alkylene oxide. The reaction system can also contain conventional polyurethane additives such as foaming agents, fillers, foam stabilizers and catalysts. In a preferred embodiment, the special polyether is produced from ethylene diamine or triethanol amine.
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