The invention discloses a damp-proof waterproof binder for a building and a preparation method of the damp-proof waterproof binder. The damp-proof waterproof binder is prepared by adopting the following raw materials in part by weight: 80 to 120 parts of ordinary
silicate cement, 24 to 38 parts of condensed
silica fume, 4 to 8 parts of poly(
hydroxyethyl methacrylate), 18 to 26 parts of
zirconium silica residue
powder, 1 to 3 parts of
toluene diisocynate, 0.2 to 0.4 parts of myristyl
glucoside, 5 to 10 parts of ardealite, 12 to 18 parts of
polyvinyl alcohol, 10 to 15 parts of yellow
dextrin, 3 to 5 parts of methyl
hydrogen silicone oil, 25 to 35 parts of acetic
styrene-acrylic
emulsion, 5 to 10 parts of dry
sludge powder, 6 to 12 parts of
aluminum silicate, 3 to 6 parts of carboxymethylcellulose, 4 to 7 parts of
sodium alginate, 3 to 5 parts of nano
zirconium boride, 0.3 to 0.5 parts of dodecyl
phosphate betaine, 0.2 to 0.4 parts of
glycerol monolaurate, 8 to 14 parts of
enhancer and an appropriate amount of water. On the basis of excellent damp-proof waterproof performance, the damp-proof waterproof binder for the building is non-toxic, has no organic volatile matter and is harmless to a
human body,
pollution-free to the environment and high in cohesive force with various base bodies; compared with ordinary
cement mortar, the binding strength is greatly improved, no fracture is caused after the binder is used for a long time, and duration can be realized.