| 摘要 |
FIELD: construction. ^ SUBSTANCE: artificial rock contains the following components, wt %: cement 12-15, quartz sand 25.4-30.2, ferrous oxide 1-1.5; ferrous hydroxide 1-1.5; quicklime 12-15, aluminium powder 0.1-0.3 and water heated to the temperature of 90-98C, 40-45. ^ EFFECT: production of strong and ecologically safe artificial rock. ^ 1 tbl |
