Under the influence of constant loads and the influence of external atmospheric factors, road surfaces are subject to deformations and destruction, which manifest themselves in the form of cracks, potholes and pits. This leads to a loss of the functional and transport characteristics of the roadbed and a decrease in the level of its safe operation. To promptly eliminate such defects that interfere with the normal operation of road surfaces, modern materials and technologies for the restoration of canvases subject to constant loads from heavy traffic are used. The practice of restoring and creating new roadways shows that "cold" compositions of road mastics are excellent for rapid high-quality work, which help to increase the service life of road and asphalt surfaces, as well as ensure safe movement.
What are "cold" road mastics and their operational functionality?
The term "cold" road mastic refers to a substance made on the basis of a bitumen composition, which may include mineral, emulsified, polymeric or plasticizing components, as well as various fillers, the mixing of which makes it possible to create a homogeneous consistency that does not need to be preheated due to the inclusion of an organic solvent in the composition.

Mineral mastics for road use include BSHA mastic, which is designed for waterproofing asphalt surfaces. The compositions of bitumen binders of the emulsified type include the composition of MBGE mastic, which acts as a substance for eliminating cracks, seams and other defects in the roadway, and can also be used as one of the additional components in the preparation of asphalt concrete mixtures. Polymer and plasticizing mastics include mastic for waterproofing roadways and sealing their defects - MBGP-X, as well as MBD-X mastic made on the basis of plasticizers.
General properties of cold-applied road trains
Cold mastic for road use is characterized by both positive and negative aspects. So, the advantages of cold mastic include:

• high adhesion to asphalt and road surfaces;
• resistance to dynamic, static and mechanical loads;
• adaptability and ease of use;
• resistance to temperature fluctuations, which is characterized by the fact that in the summer the composition does not stick to the tires of vehicles. and in winter, it does not crack under the influence of low temperature indicators.

As for the negative features of cold road mastics, the disadvantage of this composition is the difficulty in carrying out work at subzero temperatures. So, at temperatures below -5 ° C, cold compositions of road mastics should be heated so that the material acquires an optimal viscosity for application and increases its penetrating power.