Appropriate technologies of asphalt Concrete Pavement preventive maintenance of
| wangkiky 2035 | ||
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China's highway especially highway use of semi-rigid road base, pavement cracks of structural cracks, the bottom-up development. Once the pavement cracks, as the vehicle load run, rain and snow water intrusion will be early damage phenomenon. Preventive maintenance is the key to the road at the right time, on a suitable surface, the application of appropriate technology. According to the actual road conditions, select the appropriate pavement preventive maintenance techniques for guiding highway maintenance work of great significance. Currently, the main technology used in asphalt pavement preventive maintenance are: surface treatment, cracks Treatment, Surface Treatment, thin overlay, in situ regeneration.
1.Surface treatment Surface treatments include fog seal, regenerated catalyst aging treatment methods. Seal coat material is a layer of asphalt or other sealing agent, also used smaller asphalt. When the asphalt is still in the basic good condition, minor cracks have begun to appear, when the phenomenon of lean, asphalt pavement surface treatment is the most effective means of preventive maintenance. 2.Crack treatment Crack Treatment routine preventive conservation measures, the economy. Can effectively fill asphalt pavement crack sealing, greatly reduce the formation of cracks and potholes in the further development induced by other diseases. Treatment methods are impermeable membrane affixed tape, pouring, caulking, T slot heat up, hot Wabu. Crack Treatment Technology at the right time, with the appropriate road is very effective, it can be extended for two years or even longer pavement life. 3.Surface treatment Our asphalt pavement preventive maintenance measures to the most widely used, the best performance of the surface Treatment. Treatment includes road surface gravel seal coat, slurry seal and micro surfacing technology. 4. Overlaying in thin layer Thin overlay is a traditional method of preventive maintenance, it is on the original Pavement layer thickness of not more than 2.5cm of hot asphalt mixture. Can effectively improve the flatness, restore skid resistance, correct surface defects and improve security features, noise reduction and other effects. Thin overlay, can be designed for other functions, such as the use of rubber asphalt, can significantly reduce traffic noise; using an open graded friction surface OGFC, you can reduce the driving rain mist. Thin overlay thickness does not exceed the maximum 4cm, can realize more disease repair, better flatness, improve driving comfort. Applicable to road traffic rank better in the road. 5. Pavement Regeneration Pavement preventive maintenance in situ technique is an effective method for regeneration. Including in situ thermal regeneration and cold recycling technology. Project cost savings and environmental protection and other advantages, such as low energy consumption, low emissions and recycling all the old abandoned road material reutilization. 6、Summarize Asphalt Concrete Pavement use of preventive conservation measures in some of the operational phase, only select the appropriate technology in order to timely pavement disease factors and disease nipped in the bud, effectively extending the road repair, overhaul and reduce road maintenance costs, extend the pavement life, in order to fully maximize the benefits of conservation funds, to enhance the level of road service. Related Sites: [url=http://roadcuttingmachine.com/blog/4039.html]Road Cutting Machine What Brand Good[/url] [url=http://roadcuttingmachine.com/blog/3314.html]Trowel Equipment For Use[/url] [url=http://roadcuttingmachine.com/blog/903.html]market details road milling machine[/url] [url=http://roadcuttingmachine.com/blog/2627.html]Low Maintenance Bridge Maintenance Machinery[/url] |
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