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Poured asphalt mixtures are applied using machinery.
2013-01-04
Poured asphalt mixtures are applied using machinery.
1. Pressure-type crack-sealing machine: This machine uses manual operation for crack sealing. Although it can prevent rainwater from penetrating the road base and slow down further crack development, it delivers excellent sealing results, extends the service life of the pavement, and enhances both the safety and comfort of vehicles traveling on it.
2. Jet-type pothole repair machine: Jet-type asphalt pavement repair technology is a high-efficiency, rapid maintenance technique for repairing potholes and depressions in road surfaces. Its primary principle involves using high-pressure jetting to mix heated emulsified asphalt with aggregate materials conveyed via spray nozzles and conveyor belts. The mixture is then uniformly sprayed into the potholes and depressions using high-speed compressed air. Due to inertia, this process achieves dense and firm bonding. Because the procedure is simple and eliminates the need for subsequent compaction, pothole repair operations can be completed quickly, allowing traffic to resume promptly. Seam-sealing machines should primarily be equipped with pressure control devices and heating or insulation systems for sealing materials. To prevent blockages in the spray gun hoses, appropriate heating and insulation measures must also be implemented. Domestically produced seam-sealing machines include trailer-mounted models manufactured by Anshan Senyuan and Beijing Zhenglutong, as well as manually operated models produced by Nanjing Shuangliyuan.
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