FIELD: chemistry.
SUBSTANCE: invention relates to the industry of construction materials. The crude mixture for making coarse aggregate coating contains, wt %: portland cement 55.0-60.7; urea 0.7-1.3; casein adhesive 0.7-1.3; superplasticiser S-3 0.7-1.3; water 30.0-38.0. The crude mixture for making coarse aggregate coating can further contain a colouring additive in amount of 3-5 wt %.
EFFECT: high water resistance of the coarse aggregate coating.
2 cl, 1 tbl
