| 摘要 |
building materials industry, more particularly manufacture of wall products, namely silicate brick. SUBSTANCE: raw mix comprises lime, sand cement fly dust and natural soda-containing concentrate, ratio of components being as follows, wt %: lime, 4-5; cement fly dust, 10-30; natural soda-containing concentrate, 1.5- 2.0; and sand, the balance. EFFECT: greater strength of building products when compressed, shorter period of time required to manufacture thereof, and utilization of cement fly dust. 1 tbl
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