Concrete requires quality supplements
22.12.2009 в 18:37
Among those making predictions - Mark Shykovich Finer, PhD, Honored Inventor of Ukraine, the author of 150 scientific papers on betonovedeniyu. His specialty - additives to cement and concrete, diagnostic structures. It is easy to guess that the projections known specialist in the country relating to construction, and in particular the consequences of violations of technology and nezridka and false solutions specialists in the manufacture of concrete structures. In the mid 90-ies in the northern cities of Russia wave collapse. Then the sight of a bridge collapse metro station "Lenin Hills in Moscow. Why did this happen? As Mark says Finer, in pursuit of quantity and cheapness neglected quality in concrete, which were limited to essential items domishuvaly hloridnyye supplements. They speeded up the pace the pace of hardening concrete, but that is extremely dangerous, roz'yidaly metal armatures. As a result of the construction project does not cope with stress. Spohopylysya and Ukrainian builders and finally listened to the experts betonovedeniyu: chlorides dangerous for reinforced structures. Such background questions, but the story does not ends. - Declare openly and authoritatively - scientist spoke to the Ukrainian press - in the near future we expect mass destruction concrete and concrete structures.
The fact that Ukraine experienced a massive fall of the concrete towers of power lines. At the government level, stated the reason - the strong wind and ice icicles that namerznuly on the wire. Placed the question that why scientist traveled to the central regions, the so-called victims of the hurricane, frost and sleet, toured the pillars that toppled raised the relevant documents and found that plants of reinforced concrete structures that produced the data supports, in 70% the total number used as additives to the concrete toxic waste seroochystnoho production of coke oven gas.
Meanwhile, the connection of sulfur is not better than chlorides: they cause corrosion, metal, stone and
cement. In its chemical properties of sulfur takes water in the concrete forms of critical high humidity, and the fierce frost or hesitation of concrete temperature begins to collapse. It turns out that the waste coke production is used only in the pillars. - They are massively used in the us 95-year as a supplement to the concrete used in residential construction. And what happened to the reinforced concrete pillars, two years ago, can happen in five, ten, twenty years of apartment buildings. First of all concerned in Kyiv, Dnipropetrovsk, recently very intensively zabudovuyutsya ... Today, our market-Trinity area are bought and sold. Money and desire enrichment even turned into a toxic waste product. Indeed, the Council then, sprashyvayetsya, factory waste disposal facilities for them on building treatment facilities, where "good" can be sold, and e is not for small money. Annually three thousand tons of toxic waste seroochystky coke oven gas (and there are not only sulfur, but sulfite, arsenic and almost all the periodic table) zahoronyayut in concrete in the form of supplements. Our new buildings are converted into toxic burial. Why this happens? According to Marc Finer, in the construction sector today, many people professionally illiterate, inexperienced. And, among other things, the builders may not know that the businesses in which they buy supplements concrete pidsovuyut rubbish. Everything is done subtly and artfully. It creates some small private company with limited liability, which is buying for peanuts in coke plant for processing industrial waste. Then takes known, tested plasticizer, it added nine tenths of toxic waste, the mixture is called, such as universal additive, platyatsya little money for development necessary to her specifications, spiral powerful advertising, handed pre Zenta officials, managers construction companies, taken license the patent and a relatively small amount of the market started production, bringing millions of profits. Previously, when the Soviet Union, as a supplement to the problem of concrete were quite serious. Moscow was the only state organization - the Institute "reinforced concrete" - who gave permission for the use of additives and each of them carefully tested for all parameters. Today we have no concrete quality control, and therefore strongly domishuyut garbage. There was anarchy, it immediately took advantage of various dealers. Overcome this anarchy is very difficult ... In the construction industry in general and city planning in particular the situation where quality work is just not necessary, but unprofitable. In materials prepared by the Ukrainian press Vyacheslav HYLOVICH