WALL STONE
Wall stone is in shape of rectangular parallelepiped, where there are provided a lot of parallel openings, those are arranged in chess order. To increase rigidity and to improve heat-insulation properties, the stone is made of semi-hydrate of calcium sulphate. The openings are made as slots with wid...
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Zusammenfassung: | Wall stone is in shape of rectangular parallelepiped, where there are provided a lot of parallel openings, those are arranged in chess order. To increase rigidity and to improve heat-insulation properties, the stone is made of semi-hydrate of calcium sulphate. The openings are made as slots with width 8 : 12 mm, and 20:80 mm in length, and separated from each other with partitions, thickness of those is 0.2 : 0.5 of the slot thicknesses. |
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