| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to clay-phosphate material and can be used in production of construction blocks in industrial in civil construction. Clay-phosphate material contains wt %: loam 30-35; iron-containing wastes of metallurgic production with residue on sieve No 008 7-11 wt %, containing iron (II) oxide, 6-8, wastes of sandblast machine operation, containing wt %: SiO2 - 35.05, Al2O3 - 4.00, Fe2O3 - 30.00, FeO - 25.10, CaO - 2.00, MgO - 3.00, Cu2+ - 0.50, Zn2+ - 0.35, 40-45, orthophosphoric acid with density 1.24-1.25 g/cm3 - the remaining part. ^ EFFECT: increase of strength with preservation of water-resistance. ^ 1 tbl |
