With the rapid development of the economy and the increasing number of urban vehicles, the load to the road is greatly increased, and the roads are prone to damage. According to different circumstances, different maintenance measures should be taken. The usual repair of common roads can be treated in the following ways:
1, the cracks in the road below 1 centimeters can be filled with hot bitumen. If the cracks are moist, the emulsified asphalt can be used for seams.
2. When the road cracks are more than 1 centimeters, the fine-grained hot mix asphalt or the emulsified asphalt mixture should be used to fill in the sealant.
3. When the road appears in the pit, if the depth of the pit is deeper than the base, the base should be treated first and the surface layer should be repaired. If the pit depth did not affect the grass, you only need to repair the surface layer to repair pit should be on the way to the direction of the rectangular pit walls, and must not loose Tushua viscosity oil groove depth greater than 5 cm should be stratified compaction.
4, the road overload occurs upheaval is the most common problem when folding Fenggu height difference of less than 1.5 cm, the mechanical milling can be smooth. Hold the bag Fenggu when the height difference is greater than 1.5 cm and an area of more than 2 square meters, the milling machine will hold the bag all removed, and at least 3 cm below the road surface, cleaned, spray adhesive layer of oil, and the use of hot asphalt mixture pavement weight.
5, on the road is also a common problem in the rut, rut 1.5 cm above can be used to remove the milling machine (pictured), and asphalt mixture for repair, if it is because of the grass-roots local subsidence caused by the rut, should first repair base, re surfacing layer.
6, the road above layer appeared serious cracks, loose state, should be loose part of excavation, heavy paving, or in 0.8~1.0kg/ square meters the amount of spraying asphalt, spreading stone chips or coarse sand treatment.
7, the road between the asphalt pavement layer from peeling, fall off and loose parts should be removed, Tushua viscosity of the oil in the lower layer of asphalt, and the asphalt pavement.
The improvement of urban road maintenance quality is the safety guarantee for vehicle trip, the road is guaranteed, the maintenance of infrastructure can not be ignored. The improvement of sidewalk maintenance quality provides a guarantee for pedestrians to travel. The damage rate of the general sidewalks is also high, and the repair treatment for the sidewalks should be done:
1. When the masonry blocks are misplaced, protruded and sunk, they should be taken out, the cushion is sorted, the surface layer is paving, and the seams are filled. The repaired parts should be smooth with the surrounding masonry blocks.
2. For the subsidence and broken damage caused by the insufficient strength of the base, the base should be strengthened first, and then the masonry block should be paved.
3. The repair parts of the block should be more than a whole brick in the damaged part.
4. The blocks around or adjacent to the structures should be cut up, and the part should not be cut and fill in time should be filled in time.
5, blind block deletion, the damage should be repaired. Block type, position of blind road tips should be installed correctly.
The maintenance of roads and infrastructure is a guarantee for the later quality of roads and infrastructure. We don't do it in the road and infrastructure appear the first time damage repair, also do not conduct regular inspections, ahead of the upcoming road infrastructure and take maintenance measures to prevent damage, resulting in a large area after maintenance, so as to avoid unnecessary economic losses. |
