The invention relates to a waterproof bonding
mortar. The waterproof bonding
mortar is characterized by being prepared from the following raw materials by weight through mixing: 18 to 26 parts of hydrophobic
fumed silica, 10 to 15 parts of
calcium stearate, 6 to 12 parts of
slag micropowder, 4.5 to 6.6 parts of 2-phosphonobutane-1,2,4-
tricarboxylic acid, 9 to 18 parts of
zinc oxide powder, 20 to 30 parts of an AF-2 type
superplasticizer, 5 to 10 parts of glass fibers, 10 to 15 parts of
aluminum potassium sulfate, 5 to 10 parts of tallol oil-
asphalt sodium sulfonate, 8 to 16 parts of polymethyltriethoxysilane, 3 to 5 parts of
calcium sorbate, 2.5 to 4.5 parts of dicyclohexyl amine
nitrite, 3 to 5 parts of ethoxylated
lanolin and 4 to 7 parts of an auxiliary agent. The waterproof bonding
mortar provided by the invention has better
frost resistance,
carbonization resistance and
wear resistance than other
cement. Compared with traditional formulas,
zinc oxide powder is added in the formulafor the waterproof bonding mortar; and during initial setting, the bonding mortar is neutralized by water and acidic and alkaline substances, so
hydrogen and
oxygen are gradually separated and becomegases that are discharged from the bonding mortar, and at the same time, a part of hydration heat is taken away, thereby reducing shrinkage cracks caused by temperature changes.