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PROCESS FOR THE CONSOLIDATION AND SEALING OF COAL AND/OR MOUNTAIN, SOIL OR BRICK FORMATIONS IN MINING, TUNNEL DRIVING AND THE CONSTRUCTION INDUSTRY
PROCESS FOR THE CONSOLIDATION AND SEALING OF COAL AND/OR MOUNTAIN, SOIL OR BRICK FORMATIONS IN MINING, TUNNEL DRIVING AND THE CONSTRUCTION INDUSTRY
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机译:采矿,隧道掘进和建筑业中煤和/或山地,土壤或砖块的固结和密封过程
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摘要
The invention relates to a process for consolidating and sealing coal and/or rock, soil and brick formations in mining, tunnelling and construction by reacting polyisocyanates and aqueous alkali silicate solutions in the presence of a catalyst prompting the trimerization of the polyisocyanate. The catalyst is used in an amount of 6.0 to 14.5 mmole per mole of NCO groups in the reaction mixture. When the reaction mixture is introduced into the coal and/or rock, soil and brick formation to be consolidated and is cured, excellent consolidation results are achieved on account of the formation of an "interpermeated network" of inorganic and organic polymer.
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