Cold asphalt: what is it, stacking technology
Very often in a cold period of timeutilities need to make urgent patching of road surfaces. Paving hot asphalt requires an ideally dry surface and careful preparation of the substrate, which is absolutely impossible to do in the autumn-winter time. It is in such situations that in most cases cold asphalt is used. What is it and how it differs from the usual way of laying roads, let's try to understand more.
What is cold asphalt?
Cold asphalt is called innovativematerial for the repair of roads, the use of which opens new opportunities for public services and owners of private territories. This species came to us from abroad only recently, but has already managed to prove itself well in the Russian market. Unique qualities of the coating make it possible to use it under the most extreme conditions, when laying hot asphalt is absolutely impossible. Many people are interested in the question, of what is cold asphalt? What it is?
Cold asphalt is sold in bags weighing 50 kg, plastic buckets of 15 kg or in large packages up to a ton.
Advantages of cold asphalt
Cold method of pavinghas gained immense popularity due to its simplicity. With the advent of cold asphalt to repair or make a small asphalt pad can any homeowner without special skills and the use of expensive equipment.
The coating of cold asphalt is highstrength, durability and can be used immediately after the completion of repair work. During the movement of cars over the repaired area, the asphalt is compacted and acquires the necessary hardness.
The advantage of this method over hot stylingis that the work can be done at a temperature of minus 20 degrees. It is absolutely not necessary to prepare the surface to be repaired. All you need to do with the pit is to sweep the dust out of it.
Material can be transportedin all weather conditions, in a vehicle of suitable carrying capacity. Well-packed cold asphalt in bags can be stored almost forever. The opened mixture is suitable for use throughout the year, which is very convenient.
disadvantages
Cold asphalt is not recommended as the main road coverage, because under the influence of heavy wagons it loses its strength and spreads.
For comparison, you can give an example of the costboth road surfaces: 1 ton of ordinary asphalt costs enterprises in 2000-2500 rubles, at a time when the price per ton of cold mix reaches 50,000 rubles. But, if you calculate the labor costs of workers and the rental cost of equipment needed for hot coating, the laying of cold asphalt is even more economical.
Stacking technology
First of all, the formed pit is cleared of dustand various garbage. For the best adhesion of the base to the new material, the old coating is treated with a bituminous emulsion, on top of which cold asphalt will be laid. What it is and whether this treatment is mandatory, it is necessary to understand before starting work.
The emulsion contains bitumen dissolved inwater with an admixture of various components. Sticky liquid creates the most dense connection of two materials. You can buy the composition in any construction shop.
If the track has cracks and dents,fill with a liquid mixture, after which they are repeatedly passed over the entire surface with a brush or a brush dipped in a bitumen emulsion. Then proceed to laying the asphalt. He falls asleep in the hole or on the territory of the future path and is leveled. If the mixture contains lumps, they must be broken down by any heavy object.
It is very important that the surface of liquid asphaltwas 1-2 centimeters above the level of the old road surface. In the process of rolling, the mixture is pounded and pushed to the required depth. When repairing roads, this technology is used. Cold asphalt allows the use of new coating immediately after the completion of work.
Scope of application
Cold asphalt is most often used forurgent repair of road surfaces in places where traffic can not be stopped. It is advisable to use the material for repairing the foundation, hard-to-reach sections of roads, storm sewers, manholes, recreational areas and other small-sized surfaces.
Owners of private houses for accommodationcar parking, floors on verandas and gazebos, as well as capital paths are often used is cold asphalt. Its price is certainly high, but since the purchased mixture can be used for a long time, for periodic private repairs it is an ideal option.
Conclusion
In the article, we examined when and wherecold asphalt, what it is. Today this material is known to almost everyone who is directly or indirectly connected with the repair of roads. The technology of laying cold asphalt is more than simple, it is available to everyone who wants to lay a high-quality and reliable road surface in their own yard.
The thus obtained asphalt has sufficiently high performance characteristics. If mistakes were made during the laying of the mixture, the frozen coating will last for many years without repair.
