| you are: Stone kislotoupornye and cast products
Casting from the fused rocks are characterised by high indicators of mechanical durability, density, frost resistance and kislotoupornostju, it is frequent the best, than at initial breed. 123456
From plavlenyh breeds receive various products: plates for floors and sidewalks, ladder steps, plates for facing of walls, electroinsulators, various details for equipment in the chemical industry, kislotoupornye a pipe and a trench, spheres for spherical mills, etc. Cast basalt is sometimes applied as a metal substitute. 123456
Principal causes of destruction of natural stone materials in constructions: water freezing in a time and the cracks, causing internal pressure; frequent change of temperature and the humidity, causing occurrence in a material of microcracks; dissolving action of water and durability fall at water saturation; the chemical corrosion occurring under the influence of gases, containing in atmosphere (SO2, СО2, etc.), and the substances dissolved in soil or sea water. 123456
Constructive protection of open parts of constructions (socles, eaves, corbels, columns, parapets) reduce to giving of such form by it which facilitates water drainage. Same the smooth polished surface of facing and profilirovannyh details promotes. Firmness of porous stone materials which are not polished, raise by blanket impregnation by condensing structures and drawing on an obverse surface gidrofobizujushchih (water-repellent) structures. 123456
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