POLYISOCYANATE COMPOSITION FOR CONCRETE IMPREGNATION AND METHOD FOR CONCRETE IMPREGNATING

文件类型：PDF文档
文件大小：76K
FIELD : building materials. SUBSTANCE : invention relates to polyisocyanate compositions used for impregnation of concrete construction surfaces for aims of their anti-corrosive protection, and to a method for concrete impregnating by using the indicated composition. The claimed composition comprises earth-alkali metal salt dissolvable in polyisocyanate taken in the amount 0.1-5 mas. p. p. per 100 mas. p. p. of polyisocyanate. Except for, the composition can comprise additionally a hydrophobic solvent and a hydrophobic plasticizer. The claimed composition provides the deep penetration of impregnation up to 9.5 mm. The composition can be used in impregnation of brick masonry, sandy-cement covering for floors, in reconstruction of reservoirs for liquids storage and ferroconcrete constructions. EFFECT : improved and valuable properties of composition. 6 cl, 1 tbl, 27 ex