ADDITIVE AND METHOD FOR RESISTANCE TO HARMFUL EFFECTS OF FREEZING AND THAWING AND RESISTANCE TO HARMFUL EFFECTS OF DELAMINATION OF BINDING COMPOSITIONS Russian patent published in 2017 - IPC A61L15/60 C04B40/00 C08L101/14 

FIELD: construction.

SUBSTANCE: group of inventions refers to an additive for resistance to harmful effects of freezing and thawing and resistance to harmful effects of delamination for a binding composition, which contains aqueous suspension containing a water-insoluble superabsorbent polymer and swellable polymeric microspheres. The composition comprises forming a mixture of hydraulic cement and an additive containing the aqueous suspension of a water-insoluble superabsorbent polymer and swollen polymeric microspheres. The polymer microspheres are used to create voids with controlled size within binding compositions.

EFFECT: resistance of the composition to the harmful effects of freezing and thawing and resistance to harmful effects of delamination of the binding composition.

11 cl, 4 tbl, 2 dwg, 26 ex