| 摘要 |
FIELD: construction, particularly two-layer facing panels used for decorative civil and industrial building facing. ^ SUBSTANCE: facing building member comprises concrete monolithic body having facing layer of regular or irregular shape. Both layers are formed of semi-dry materials. Fine filler used for constructional layer is quartz sand and keramzite sand with gradation factor of 1.1-2.8. Coarse filler is milled keramzite gravel having particle dimensions of 5-10 mm. Facing layer includes Portland cement M500. said components are taken in the following amounts (% by weight): constructional layer in semidry state: Portland cement 20-35, keramzite sand 5-37, quartz sand - 0-37, milled keramzite gravel - 5-45, remainder is water; facing layer in semidry state: Portland cement 15-30, sand 60-75, remainder is water. The second building member variant is also disclosed. ^ EFFECT: improved constructional and decorative properties, extended range of building members application due to creation of two building member variants, increased quality and service characteristics. ^ 4 cl, 11 ex |
