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Asphalt pavement maintenance should be the main prevention, in the early stages of the disease, it is necessary to timely detection, early hands, to take preventive maintenance, the disease risks reduced to a minimum, to prevent "minor illness dragged, adversely affected by the disease." Focus on "five points". One is running sand point, the area of 10 square meters or less, due to asphalt peeling, fine material ran out, the surface was honeycomb. Second, the local settlement point, vertical and horizontal direction of 1m within the settlement of more than 2 cm,[url=http://chipspreadermarket.com/road/609.html]high end concrete milling machine[/url] driving obvious beating. Third, the pulp pulp point, the road crack, net crack, water penetration to the grassroots level, there grass-roots erosion pumping pulp. Four is the ups and downs, the surface layer of the vertical layer of the formation of a partial washboard, horizontal rutting. Five is the crack point, horizontal seam, longitudinal seam, soft, just the Department of joints (such as the bridge board joints) and other cracks appear wrong Taiwan, wrong sets of height difference greater than 5 mm.
Pavement maintenance of the main methods are four, one coating anti-seepage. Mainly for the road surface cracks, but no significant deformation, nor the phenomenon of pulp pulp can be used to repair a thin layer of thin glue to prevent the penetration of water. Second, irrigation and watering. When the road cracks but did not appear obvious wrong Taiwan, no gnawing phenomenon, you can use the method of hot asphalt for water treatment. Three is hot baking materials. On the road cracks, honeycombs, rutting and other road surface deformation is not serious,[url=http://chipspreadermarket.com/road/1003.html]blacktop resurfacing driveway[/url] can be used hot baking, appropriate to add new materials, artificial mixing evenly, compaction reinforcement. Four is dug up fill. If the pavement disease has spread to the lower layer, and even the grassroots level, then the disease must be all the excavation area, layered filling. Asphalt pavement repair operations, the following three aspects must pay attention to grasp the essentials. Hot asphalt grouting repair, pay attention to three points. 2, hot asphalt heating, the temperature should reach more than 130 ℃, to maintain its good mobility; 3, after the completion of perfusion, the use of hair dryer and iron hook to clean the debris in the cracks; To cool the asphalt to about 60 ℃, still with plasticity, with the shovel shovel the surface of excess asphalt, to prevent pollution of the road. When the surface layer of hot fill, pay attention to three points. 1, hot baking disease pavement, to be more than 100 ℃ when the temperature began to work; 2, to use iron rake will have sick road surface rake loose and remove the surface of large aggregate to ensure the repair effect; 3, add new After the material, to comb shaking evenly, compacted. When digging fill, pay attention to four points. 1, chisel in addition to the disease layer,[url=http://chipspreadermarket.com/road/4344.html]led emergency lights for buildings[/url] after the removal of waste, the use of high-pressure hair dryer repair interface will be completely blown to ensure that the repair bed clean, no debris and floating; 2, sprinkle sticky oil to cover the interface, Can not have dead dead; 3, the thickness of the stratum is not greater than 6 cm, around the seam filler to be slightly higher, and to be layered compaction, compaction degree to 95% or more; 4, To use cold glue coating around the seams, to prevent moisture infiltration. |
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