OREANDA-NEWS  Deicing reagents contain magnesium chloride and can be dangerous and harmful. Composition News.ru Fedor Vasiliev, an expert on building materials, brought it.

At the same time, such mixtures can melt ice even in 30-degree frosts, the expert stressed. Vasiliev called the disadvantages of salt—based substances - they aggressively affect metals and leave white marks on shoes. Russians who have pets have to regularly make sure that their pets do not lick harmful substances.

An alternative to reagents is table salt, sand or marble chips. They are harmless to the environment, humans, metal structures and other coatings. Plus, the crumbs are that in the spring it can be collected and reused next year. The disadvantages of sand and crumbs are that they do not accelerate the melting of snow in any way, and dirty puddles will remain in the entrance and in the hallway from them.

The expert believes that abrasives are best suited for an apartment building. The problem with icing of the porch can be solved by laying a special non-slip rubber mat at the entrance.

Earlier, residents of the capital were promised an end to snowfall by the weekend. On Friday, January 12, the air temperature will drop to minus 13 degrees, and the cold snap will intensify over the weekend.