It should be noted that road maintenance is an important part of urban management. What are the problems on the highway that need to be repaired in a timely manner? We usually do not find out when we see these problems. We now understand the situation of road damage.
Asphalt pavements are prone to pit problems. Pits are potholes caused by the partial loss of pavement aggregates under the effect of traffic. Rainstorms make the situation worse. If these pits are not repaired in time, the road surface will be partially loose, causing inconvenience to traffic. The cause of the pit may be caused by water damage or due to construction factors. Of course, more and more vehicles are on the road, adding a lot of burden to the ground. This may be one of the reasons for pits.
We can repair pits by cold material cold and hot cold cold. Both of these methods have their own advantages and disadvantages. The advantage of cold stuffing is that it can be stored for a long time and it is convenient to repair pits. However, it has a short repair life, usually only for more than two months, and the material price is too high. This is not suitable for daily repairs on the entire line. Therefore, we do not use this method to repair pits in large quantities on a daily basis. The hot material cold supplement is a traditional excavation repair process. The work flow is to add new asphalt mixture after the old material in the disease is removed and then level and compact it. This technology has low construction costs and high work efficiency, and can quickly solve pits on roads. And work is easy to carry out on a large scale, saving a lot of time and costs. However, after repairing the pits with this method, weak joints may occur, which requires the staff to carry out regular maintenance management and timely repair the pits on the road surface.
How large pits on the road need the staff to carry out the maintenance in time? Generally refers to a pit with a depth of more than 20mm and an area of ​​more than 0.04m2. The pavement damage becomes pits. If the pits are left unattended for a long time, the surrounding asphalt pavement will continue to be intensified and destroyed, and the base and subgrade below the pits will also be destroyed.
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