| 摘要 |
FIELD: building. ^ SUBSTANCE: invention refers to building mortar and can be implemented at industrial, special and civil building. The building mortar contains cement, sand, and wastes of copper melting production with the following contents of basic oxides, wt %: SiO2 - 29.60; Fe2O3 - 60.60; Al2O3 - 3.30; CaO - 1.60; CuO - 1.10; ZnO - 2.90; TiO2 - 0.40; PbO2 - 0.40; MnO - 0.04; NiO - 0.02; Cr2O3 - 0.03; CdO - 0.01, additive - sol of iron hydroxide (III) and water at the following ratio of components, wt %: cement - 15.23-16.42, the said wastes of copper melting production - 75.74-76.82, sol of iron hydroxide (III) - 0.04-0.05; and water - 7.8-7.9. ^ EFFECT: increased strength at compaction, reduced shrinkage and water absorption of building mortar. ^ 1 tbl |
