Many people who, as part of their profession or privately, are involved in construction know perfectly well what ICBMs are. But the thing is that to this day, civil engineers have not yet figured out how to replace the bitumen-rubber composition. It is used when constructing roofs for which mastic is used, as well as when using roll materials for roofing.
Thus, bituminous mastic MBR 65 was certified back in the days of the USSR. But this does not mean that since then its composition has not changed or been modified. There are two varieties of it - liquid and thick. By itself, it is petroleum bitumen with additives of filler and plasticizer. The latter, in turn, gives it viscous properties, which makes it easy to apply the solution to the roof surface.
Composition and structure
Due to its composition, bitumen-rubber mastic (MBR) quickly combines with any materials. Therefore, it is packed in special anti-adhesive containers or bags. To give the substance the necessary plasticity, crumb rubber is added to it.
Where is it used?
Mastic-based roofing is being laid on all multi-storey buildings today. Its advantage is that it completely fills all the existing gaps. Work with mastic is carried out by preheating it. Those who know what an ICBM is take this fact into account, so they warm it up in advance. It softens completely at a temperature of about 90 ° C.
Before starting work, the surface is prepared. To do this, the roof is cleaned of existing debris. Also, before starting work on the roof, the roof is dried. In this case, special gas burners are used. If the weather is dry and hot outside, then this procedure can be omitted.
Application Features
In addition to the above methods of application, those who know what an ICBM is also use it when laying pipelines. The fact is that MBR 65 has a higher softening point and is therefore used to isolate structures that are constantly exposed to vibration. In the process of mechanical deformation of the processed pipe, the mastic layer will change with it.
Varieties
Now, having figured out what an ICBM is, let's look at some of its common varieties.
Mastic MBR-100 is used when laying roll materials for roofing, as well as for filling waterproofing screeds. The number indicated in its marking indicates the temperature at which softening occurs. But at the same time, it is worthkeep in mind that the mastic needs to be heated up to 200 ° C. All this is done in order to make it easy to apply it on pitched surfaces, as well as on vertically located walls.
Those who have long figured out what bituminous mastic is, at least once encountered such a variety of it as MBR-X. A feature of this material is that preheating is not required for its use. This is achieved due to the fact that the composition includes a special solvent, which, after application, evaporates spontaneously, and the mastic hardens.
