FIELD: construction.
SUBSTANCE: mixture for artificial sandstone production by pressing with soaking in calcium chloride solution includes the following components, wt %: quartz sand with grain of not more than 2 mm 30.0 - 36.0, clayey material 2.0 - 3.0, sodium liquid glass 38.0 - 42.0, swollen perlite sand with grain of not more than 2 mm 23.0 - 26.0.
EFFECT: reduced duration of soaking in calcium chloride solution with preservation of strength characteristics.
1 tbl
