Patent ID: 8900361

Claim:
A thermoinsulative concrete based on an aluminophosphate binder including a phosphate binder and a mixture, wherein an orthophosphoric acid is added in a concentration of 65-75% as the phosphate binder and a mixture of fractions of an electrocorundum is added as the mixture with the following mixing ratio of the components, according to % of wt: 28-36% by wt of the electrocorundum with particle size in a range (μm) of 630-1600; 22-24% by wt of the electrocorundum with particle size in a range (μm) of 200-500; 15-20% by wt of the electrocorundum with particle size in a range (μm) of 100-250; 25-35% by wt of the electrocorundum with particle size in a range (μm) of 28-80; and 10-12% of the orthophosphoric acid in addition to 100% wt.