FIELD: concrete mortars. SUBSTANCE: invention relates to a method for mixing silica with hydraulic cement (water lime), in particular, for cementing wells, and is distinguished with that amorphous silica with particle size less than 1 mcm is mixed with water to produce liquid microsilica, which is then supplemented with fine silica with particle size 2 to 200 m, and silica mixture thus prepared is added to cement solution directly in mixing pan. EFFECT: reduced cement solution viscosity due to more suitable silica-cement solution mixing procedure. 3 cl
