An important part of road maintenance is the reconstruction of old roads. The old roads can be divided into two recycling modes, namely, cold and hot recycling. There are four specific types: CIR, cold plant mixed recycling, geothermal recycling, and plant mixed hot recycling. Among them, it is applicable that the reconstruction of the surface structure of the base course is not expected to be good and there is no in situ cold regeneration technology, which can realize local transformation. It can not only reduce the waste of materials, but also reduce the transportation cost. At the same time, it will not affect normal traffic. It does not damage the road green belt and vegetation. It is a road maintenance construction team. However, its disadvantage is that the related equipment is expensive, and the design difference of the uniform composition of the material will cause difficulties.
Lease mixing equipment for road cold recycling on the base and a lower layer to maintain the surface layer of the secondary road. The advantage of this technology is process control. This technology is mature. The disadvantage is that it is required to achieve a certain thickness on the covered surface. When geothermal regeneration technology is suitable for preventing skin regeneration and protection, and materials in this way can also be fully utilized, the transportation cost is low, but its higher equipment cost can not cure structural diseases; The hot mix plant is suitable for intensive regeneration. The material composition is designed strictly and has good technical support. However, the conversion cost of equipment and related substances is relatively high. One of the company's main businesses is cold regeneration leasing. Friends in need are welcome to consult.
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