| 摘要 |
FIELD: construction. ^ SUBSTANCE: invention is related to the field of construction materials. Clay-phosphate material, which contains clay, iron-containing waste of metallurgical production on the basis of Fe(II) oxide with residue on sieve No. 008 5-7% and orthophosphoric acid with density of 1.25 g/cm3, contains blue Cambrian clay and additionally waste of sand from treatment and sandblast devices with residue on sieve No. 008 5Ç7% with the following composition, wt %: FeO - 7.0; Fe2O3 - 44.0; Al2O3 - 4.5; MgO - 6.0; CaO - 4.3; SiO2 - 30.0; Cu - 0.6; Zn - 3.5; Pb - 0.1 at the following ratio of components, wt %: blue Cambrian clay - 57- 58, specified iron-containing waste - 11- 12, specified sand waste - 12- 13, orthophosphoric acid with density of 1.25 g/cm3 - the rest. ^ EFFECT: increased frost resistance of material. ^ 1 tbl, 1 ex |
