Method for repairing damaged asphalt pavement

Abstract

The invention discloses a method for repairing a damaged asphalt pavement. The method is characterized by comprising the following steps; cleaning the periphery of the damaged asphalt pavement; injecting enough cold patching materials into the cracks or the pit slots; after uniform filling, selecting a proper compaction tool and method to compact cracks or pits according to the field environment needs to be repaired, the size to be repaired, the area to be repaired and the depth to be repaired; scattering lime or fine sand at the repaired position after compaction is completed, and cleaning the surface back and forth by using a cleaning tool, so that the repaired surface gaps are filled with the lime or fine sand. The cold patch material is suitable for any weather and environment. The cold patching material has anti-aging and bonding functions, the repaired pavement is not prone to falling off, the production process of the cold patching material is simple, air and water quality cannot be affected, the asphalt cold patching material can be used for rapidly repairing the damaged pavement, and road traffic cannot be affected for a long time in a large range.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a method for repairing damaged asphalt pavement. Background technique [0002] Highway pavement has the advantages of firmness, wear resistance and long service life. Highway is an important part of traffic. However, due to long-term overload operation and natural factors, it is likely to be damaged before the maintenance period. If the early pit diseases are not treated in time, with the rapid increase of traffic volume and the continuous action of the traffic load, the pot pit diseases will deteriorate rapidly, and even serious problems such as cracks, cracks, and looseness will occur around the pits. The secondary disease seriously affects the performance and service level of the pavement. This requires timely repairs to the road surface. Existing emergency road repairs are just a layer of asphalt or cement on the damaged road surface, which cannot solve the deepe...

AI Technical Summary

Problems solved by technology

[0003] Among the existing production methods, the traditional hot patching method cannot be constructed in low temperature and rainy and snowy climates, and has relatively strict requirements on the weather and environment, and cannot meet the requirements of urban fine management and rapid repair of road potholes. The selection of hot patching materials Heavy-duty construction machinery may be used, and the repaired cracks or pits may cause problems such as falling off and cracking. The storage time of hot-filling materials is not long enough, and the production and processing methods of hot-filling materials are relatively complicated. During the maintenance process, there may be It is also necessary to close the nearby traffic, and the repair process will also produce dust and black smoke, which will pollute the air, and the hot-filling materials may also cause a certain degree of pollution to the surrounding water quality