Protivogololednaya posyipka — a stone crumb
Who loves ice? Perhaps, anybody. And it is absolutely clear and defensible. Motorists fight, pedestrians break finitenesses. So that pleasant it is not enough. Ice occurrence pertinently only on skating rinks and the rivers, well, perhaps, in a martini glass… In other places it is accepted to struggle with ice by means of the diversified means.
In Russia till 1993 in streets of Moscow the mix of sand and salt which successfully consulted with ice, tyres and boots reigned. Then on change of this mix pure technical salt has come ‐ in a city trees began to perish: salt simply destroyed their roots.
Besides — salt, being dissolved in water, corroded asphalt and put out of action the contact electric system of an urban transport. In general — too the nonideal decision of a problem. Now the Moscow highways are fallen asleep by other reagents, more harmless if at all it is possible so to speak about chemical substances. But for us that there was one more means for struggle against ice — a stone crumb is more important.
Let’s notice, that application chemical protivogololednyih reagents (HKM and HKF) and rubble of fraction of 2-5 mm has received polozhitelnoe the conclusion of the state ecological examination. As a result the Government of Moscow has published the decree on compulsory use of a granite crumb at struggle against ice. Now it with success is applied in court yard and this experience, according to J.Luzhkov, it is necessary to continue.
This practice has been borrowed from the Scandinavian countries which too are not by hearsay familiar with slippery streets. The granite crumb is especially effective at strong ice and low temperatures. It is necessary to notice, that use in quality protivogololednoy posyipki a marble crumb is not less interesting.
What basic recommendations about use of a granite and marble crumb in urban conditions? Making a start from properties of materials, we can offer granite use there where difference of heights and the strengthened movement of engineering — territories of warehouses, parkings is observed, highways, after all a granite crumb — the crushing product tvordyih rocks, is an excellent abrasive and guarantees coupling on ice.
If to compare a granite and marble - last softer, as consequence - less abrasive. Proceeding from these characteristics the marble crumb is recommended to be used in places of public appointment with the big congestion of people: supermarkets, domestic territories, the cultural and sports centres. The marble structure is that, that it, in comparison with a granite has higher thermal capacity that promotes faster destruction naledi.
For posyipki manually usually use fraction of 2-6 mm, for mechanical drawing the fraction of 0,63-3 mm is more suitable.
Now the footwear of Muscovites will be pure, on snow there will be no dirty sand, and trees will please us with fresh, green leaves in the spring. One more unconditional dignity of a granite crumb is that its reuse is possible. We will notice, that the stone crumb is unique antigololednoe the means allowed to use on foot zones and in court yard in territory of Moscow.
It is pleasant at that, that the sphere of application of a stone crumb is wide enough is both building, and landscape design, and design of interiors. Besides, the fraction of 2-5 mm is used at water-purifying actions, by production of an artificial stone, souvenirs, porcelain and ceramics.
It is necessary to add only, that for your convenience a marble and granite crumb are packaged in convenient packings on 50 kg and 1 ton.
It is introduced: on October, 05th, 2007
Nobody loves ice. It threatens motorists with failures, to pedestrians – the broken finitenesses … Ice gives pleasure only on a skating rink, in other places with ice it is necessary to struggle …The sand and salt mix successfully consulted not only with ice, but also boots, pure technical salt has started to kill trees, destroying their roots. The science...
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