| you are: Kinds and application of natural stone materials
Stenovye receive stones from tufov and porous limestones by cutting out by the mechanised way from a file of rock or sawing up of blocks - preparations. Stones apply to a laying of external and internal walls and partitions. Äàííàÿ ìåáåëü íà çàêàç öâåòà.
The Basic sizes stenovyh stones: 390X190X188, 490Х Х240Х188, 390X190X288 mm. Each such stone replaces in a laying of 8-12 bricks. It is expedient to produce and apply stenovye blocks in volume not less than 0,1 м3 from a tufa, limestone, dolomite, sandstone or porous andezita (fig. 31). Integration by stones reduces work expenses, allows to pass to industrial methods of building. Walls from melkoporistogo a natural stone do not demand some external plaster or facing.
To external walls apply stones in volume weight no more than 2100 кгм3. Bearing walls put from stone М35-400, and for filling of a skeleton of many-storeyed buildings and in low building stone М4-25 is suitable. Internal walls, the bases, walls of cellars carry out from a stone in volume weight no more than 2300 кгм3. Stone water absorption should be no more than 30%, frost resistance - not less Mrz15.
For facing of hydraulic engineering constructions, quays, foundations of bridges, a socle part of monumental buildings apply stones and plates from a granite and others izverzhennyh breeds to which high frost resistance, durability and hardness is peculiar. Stones for facing can be plitoobraznye (thickness of 15-25 sm) and utolshchennye a pyramidal kind (thickness of 30 sm and more).
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