METHOD OF MANUFACTURING PRESSED ARTIFICIAL STONE

Abstract

The method of manufacturing pressed artificial stone includes grinding concrete scrap to obtain powder, moistening the powder with water, forming by pressing in a mold and subsequent hardening to form artificial stone. Concrete scrap powder is used as the only solid raw material base. After grinding concrete scrap, the powder passing through a 0.14 mm sieve is isolated, heat-treated at a temperature of 290-310 °C for 50-60 min, moistened to a humidity of 8-12%, pressed at a pressure of 10-30 MPa. Hardening is carried out in air-humid conditions at a relative humidity of 95-100%.