METHOD FOR IMPROVING SPEED PROPERTIES OF ICE MASSIF Russian patent published in 2015 - IPC F25C1/00 F25C3/02 A63C19/10 

FIELD: construction.

SUBSTANCE: method involves stages at which crude ice massif is poured in a certain manner on the prepared concrete slab; pouring of crude ice is completed by chipping the last layer with an ice combine to the depth of 0.35 mm with combine filling of the layer with water with the temperature of 40-55°C; finish ice massif is poured in a certain manner above crude ice massif; pouring of finish ice is completed by chipping the last layer with the ice combine to the depth of 0.35 mm with combined filling of the layer with water with the temperature of 55-70°C; and one-time chemical modification of the surface layer of ice massif is performed with the ice combine by chipping to the depth of 0.3 mm with combine filling of the layer with water with the temperature of 55-70°C, which includes polyvinyl pyrrolidone (PVP) in the amount of 0.000524%±0.000055% of water weight and glycerine in the amount of 0.00262%±0.00039% of water weight.

EFFECT: obtaining ice massif with high speed properties with a possibility of their continuous maintenance.

5 cl, 4 dwg