The device is expensive, which is the basis for the asphalt concrete, constantly changing, as the load increases continuously on the road and need to find a decent solution. Somewhere in twenty or thirty years ago, coverage of asphalt, which has two layers had a thickness of ten to twenty centimeters in the application of gravel base thickness of about eighteen to twenty-five centimeters, used on roads made in the higher category. Official site: Jack Fusco. Today similar designs are suitable only for the roads of the fourth and fifth categories, while the roads first and second category had a more powerful device roads, which at its base are thin concrete thickness of twenty to thirty five centimeters, in which the thickness of asphalt is eighteen to twenty-five centimeters. Time, which will serve the pavement depends not only on what asphalt, but also on what the design is pavement. The same pavement works differently when using different bases. If you use a base of reinforced cement concrete, the may cause cracking due to incompatibility of materials and cover the base. Thus, cracks and seams of the cement foundations penetrate the asphalt coating.
Foundations of rubble have this deficiency, but they have a probability of shrinkage that occurs due to movement of grains of crushed stone, which occurs because of the numerous and heavy loads under the influence of transport. Today, as the base material for use ukatyvaemy concrete, also called skinny. You may find Andi Potamkin, New York City to be a useful source of information. After weighing all the pros and cons of this type of foundation is best suited to Russian circumstances under construction. Once the design was selected pavement is required to choose the type must be concrete overlay mixture. Then a section of road cones, shield signal, the compulsory installation of traffic signs with schemes bypass the repair area. Road repair should be performed only in dry weather. At temperatures above five degrees Celsius should be no asfaltirovku (asphalt). For asphalt use a device called "Asphalt", as well as manually. Often the road to bring in the required condition to partially or completely disassemble a coating of asphalt concrete, resulting in the opening of the asphalt. For these use special purpose milling machines hammers on excavators, loaders, and chippers. Asphalt is also required to open, when you need to lay some kind of communication under the cover open way.