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1. Overall cleaning
In order to ensure the quality of the plastic surface layer, it is necessary to clean the foundation; it is necessary to use a broom to clean up debris, shovel and clean up with a shovel, and rinse with a high-pressure hand tap; seal the construction work surface to minimize vehicle and pedestrian access.
2. Repair
Use special tools to clean the bottom layer, prepare the mixing barrel for material mixing and ensure that it is dry and clean. The material mixing should avoid staining the ground and the construction quality and affecting the cleaning. The mixing time should be controlled appropriately according to temperature and humidity.
3. Entire back cover
Re-clean the whole field and put up warning signs to prevent non-workers from entering, protect other sports facilities, determine the location of raw materials, prepare the necessary tools, use a mixer to mix the single group evenly, pour it into the tools for spraying, and start The spray field is used for back cover, which is to prepare the surface layer.
4.surface construction
The work surface of plastic materials requires a flat and solid ground, and measures to prevent pollution. Check the performance of tools and mixing and transportation machinery. The specific operation should be carried out according to the actual situation of the project, and the material transportation distance should be shortened as much as possible.
5.surface coating
Determine the workload of the day according to the engineering situation and the weather conditions of the day, such as temperature and humidity, and stir it for use; pour the evenly stirred spray paint into the sprayer for cooking, and turn on the internal stirring and feeding device at the same time, the stirring spray angle is less than 75 degrees; spraying operation Continuous feeding and continuous spraying are required, and operators need to be highly coordinated.
6.positioning markings
Strictly follow the International Association of Athletics Federation standard track and field venues to mark the line, clean the surface of the plastic runway again, and blow off the debris with a hair dryer; first set the point line with a pin, eject the stitch with a white gray line, and then spray it with a special line marking line White line, the standard line width is 50mm, the line is required to be clear, without obvious seams and burrs.