On concrete and mortars

Scientific-production company "Ekostroymaterialy was founded in 1998 in Belgorod (Russia). The purpose of the company was accelerating and simplifying the implementation of scientific development Authors scientists Belgorod Technological University. Shukhov. Structure consists of two closely interrelated divisions: the Research Department and production areas. Currently, activities of the company are: making small wall blocks and other building products from concrete (komirchastoho neavtoklavnoho cement concrete), construction work, including the manufacture of cast concrete in construction terms, construction of sewer manholes and concrete slabs handle them, as well as designing and supplying high-tech equipment for the production neavtoklavnoho concrete. By the time I suschestvovani company established itself as a reliable supplier and partner of numerous profitable business organizations and entrepreneurs in Russia, Ukraine, Kazakhstan, Latvia, Belarus, Georgia, Kyrgyzstan. Geography selling equipment encompasses space from Kaliningrad ka Vladivostok. Penobloka - a relatively new material: brick if 3000 years, YAB - no more than 100. This artificial porous stone that can float in the water meets all regulations, the requirements for building materials, structural, deformativnosti, resistance, its thermal properties in a 3.12 times higher than in the bricks. The wall of this material "breathes", creating a good indoor climate, but penobloka, unlike wood, which has the same properties, has a high fire and biological resistance. Neavtoklavnyy foam as a kind penobloka, owning all the advantages of the latter has several advantages. In concrete increased water resistance, atmosfe rostoykost, low water absorption.

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Communications professor, Ph.D., Head. Department of Building and special astringent substances St. Petersburg State Technological Institute Valentin Korneeva made them at 6th International Conference for manufacturers "Dry mixes for the XXI century: technology and business» (Baltimix 2006). Under certain conditions on the surface of cement mortars (concrete) - tsementosoderzhaschyh plaster, putty, mud kladok - formed white attacks, which are often ryhloyu weight of crystalline inorganic salts. Undesirability formation of such raids, which called vysolami (efflorescence), related primarily to the loss of decorative effect construction. In many cases, due to their vysoly ryhliy structure can zchyschatysya from the surface mechanically or disappear when they are involuntarily dissolution or wash atmospheric subsidence. But in the row in case they are tightly moderated surface utrudnyayuchy decorative surfaces. Vysoly can accumulate in the porous structure of cement mixtures (eg plasters) near the surface and cause the appearance of defects - vyfarbovuvannya and even destruction of the surface layer. Vysoly can accumulate under less permeable decorative (otdelochnymi) layers (putty, paint) and a reason for their rejection (separation) from the surface constructions loss of its decorative properties. Either way, in most cases require special measures to prevent emergence vysolov or eliminate them in cases where they still appeared on the structures. The source of these vysolov be all elements of building construction materials: cement mortars (concrete), brick, natural stone, building blocks of different composition (shlakozolobetonnyye products) solutions kladok - the presence of these materials in water-soluble salts. Certainly E vysolov terms appear on the surface of building materials and structures is the presence of moisture in the material dissolved in it salts contained in the material or the material absorbed from the outside, followed by migration solution that formed on the surface of the product and crystallization of salts during drying, and thus formed vysoly. Sources of water in the material of construction may be next.

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In Russia may be a deficit of cement in 2006-2007 in Russia might be shortage of cement - an order of 2 million tons per year, and by 2010 - from 5 to 10 million tons. The reason is the lack of production capacity in the cement industry. According to the statistics, they comprise 71.6 million tons per year, but due to lack of investment resources at a high level of depreciation of fixed assets (about 70%) the actual capacity of not more than 60-65 million tons. This output, according to the press center JSC Eurocement, participants came 3 rd International Conference Petrotsem-2004, which were held in St. Petersburg. According to the president holding Eurocement " Michael Skorohoda for the task to double the 2010 volume of cement necessary to solve some critical problems, one of which - the need for translation companies to dry method of production. Today R ossyi by this method produced a total of 15% cement, whereas in the world - 85%.

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Holcim Group - a global concern, which is one of the leading manufacturers of building materials. One of the proposals concern that most zazhadalysya - white cement produced in different production plants in Eastern Europe with high quality materials and using advanced processing technology. This material possesses the best characteristics of the building and meets all requirements for portland cement in accordance with standard EN 197-1. Holcim, which supplied architectural and decorative concrete, made of white cement, decorative offers inexhaustible opportunities. Its plastic properties in conjunction with aesthetic potential use of relatively shape, color and structure are indispensable for modern architecture. As for his own white cement, the most developed area of its application is the production of dry mixes for all types of finishing works and decorative plasters of different colors. Fine milling of white cement to obtain homogeneous material, uniformly colored by the whole volume. Holcim Cement has a high svetootrazheniya (underwear) not less than 85%. This allows you to use it to get any shade (especially light colors) in the production of colored concrete, artificial stone and brick, color mixes and zaterly and cement paint. White cement makes it possible to get great white and colored concrete any colors, resistant to atmospheric action. Use of white concrete (both enhanced and simplified) for the construction and processing of commercial and business centers, theaters, museums, subway stations, stadiums, hotels, churches and houses will add to these facilities beauty and uniqueness. White cement - a great material for the manufacture of liquid floors and genital plates, as well as paving slabs and stones and stairs. Such products have high resistance to mechanical action, low abrasion and attractive appearance. With white cement are those high zaterly and fillings, as well as gluing warehouses and cement mortars for tiles (for use on different bases).

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