Heat-resistant refractory plaster as a fire safety tool
Who has worked in production, especially where various flammable substances and lubricants are used, and the work is associated with high temperatures, they are well aware that fire safety comes first in importance among other organizational issues. Well, if someone is not familiar with such industrial objects, so what do we imagine - let's imagine ourselves to be the leaders of such an enterprise.
So, the night, the sounds of the siren, the flaming shops, the night shift workers running out of production complexes, the sounds of the sirens of fire trucks and the ambulance. And sacrifices, many victims. This can be a nightmare of the head of an industrial company, maybe this is also true if the factory does not use fire prevention means, including fireproof plaster .Why is she so good? Well, at least in that the surfaces covered by it can successfully withstand the temperatures accompanying the open flame, for different periods, from half an hour to two and a half hours. Agree that half an hour can be saving, if this is the time that will be required by firefighters to start localization and extinguishing the fire.
It is known that concrete begins to break down at a temperature of more than 500 degrees Celsius, the sheet metal starts burning at a temperature above 930 degrees, and in case of fire in a confined space with fresh air, the temperature can reach 900 degrees. The flame outside the building can reach a temperature of 1200 degrees, it will burn everything, including the load-bearing metal structures. Such a coating, as fireproof plaster, can withstand the flame for a long time, until all combustible materials turn into ashes and there is no shortage of fuel. That is, the use of thermal plaster can greatly reduce the destructive effect of fire.
Fireproof plaster, its main properties and characteristics
As a decorative covering of walls and other building elements, heat-resistant plaster, unfortunately, is completely useless. Here it is necessary to make a choice - either fire safety, or beauty( which can disappear in the flame of a fire like a moth in a candle flame).The fact is that plasters, whose main purpose is to confront an open flame, have for some reason gray shades. This includes plasters for stoves and fireplaces, and mixtures for covering walls and metal structures in production shops.
What is noteworthy, there are plasters that perfectly fit the metal, despite the fact that for adhesion( adhesion) of the plaster mass, a considerable roughness of the surface to be removed is necessary. Nevertheless, applied with a thin layer of 10 to 20 millimeters, such plasters cover the metal beams and supports in an even layer, and hold almost as much as the structures themselves, or more precisely, up to 50 years .
Refractory plaster applied to concrete, metal or surfaces made from other materials has extremely high reliability, even small deformations of the surfaces covered by it. Moreover, it does not crumble, even with weak impacts, which indicates the high quality of the components used for such plasters. The only condition for high-quality application is a thorough priming of the surface and the absence of dust and other foreign particles on it.
Fire-resistant plaster - application methods
As mentioned above, in order to prevent the fireproof plaster from falling off a month after its application or after slight heating due to fire( when it should become the main protection of the building from a fire), preparatory work must be carried out before finishing. Priming is carried out by special compositions, but in some cases it is possible to do without primers, only cleaning the surface completely from oil or grease stains with the help of solvents, and from dust and dirt - with a damp rag.
The heat-resistant plaster can be applied to the prepared surface either manually, by standard or in many ways using the trowel and spatula, or by the shotcrete method, ie with special aggregates( cement-cannon or concrete-syringe machine).In the first case, the work is carried out in stages, since the application of the finished mixture mixed with water is permissible only for half an hour. Therefore, when covering large areas, inevitable occurrence of seams, which can become bridges for the passage of heat .
Another thing, if you use special mechanisms. In this case, the only tool that needs only to be directed towards the surface covered with plaster is a mortar gun. Keep it must be strictly perpendicular to the surface of the wall, then smoothly approaching it, then pulling back on itself, so that the layer of fireproof plaster turned out to be even. It is necessary to conduct a mortar pistol along the wall, covering the strip with a strip so that each successive line halfway over the previous one( like plowing the ground - reached the end of the field, turned around and laid a new strip of deformed soil next to the previous one).This method excludes the appearance of seams and provides an exceptional uniformity of the coating.
When all surfaces that can only be covered with plaster, fireproof and completely non-heat-conducting, it will be covered, you can breathe peacefully and establish production without fear that the fire will destroy all our works. Agree, imagine yourself as the head of an industrial concern, whose shops are completely protected from fires - it's pretty nice. Well, working at such an enterprise is also safe.
