**Precautions for the construction of plastic runway surface layer**
1. Preliminary preparation**
Before starting to lay the plastic runway, detailed pre-planning and preparation must be carried out. This includes surveying the site, designing the layout, determining the quantity and variety of materials, etc. In addition, it is necessary to ensure that the site is dry, level, and free of debris to create good conditions for construction.
Second, the basic treatment**
The quality of the plastic runway is largely dependent on the foundation treatment. For unsatisfactory ground, it is necessary to level, tamp, repair and other treatments to ensure that the ground is flat and free of cracks. In addition, the ground needs to be waterproofed to prevent water from penetrating and affecting the quality of the runway.
3. Material selection and allocation**
Choosing high-quality plastic runway materials is key. It is necessary to ensure that the material is non-toxic, environmentally friendly, and has excellent physical properties. At the same time, it is necessary to accurately allocate various materials according to the design requirements to ensure the quality of laying.
Fourth, the laying process**
In the laying process, the process flow should be strictly adhered to ensure that each process meets the standard. In particular, care should be taken to avoid excessive heating or cooling, which may affect the material properties. After laying, the edges should be trimmed in time to ensure that the runway lines are clear.
5. Care and maintenance**
After the plastic runway is laid, a certain maintenance period is required. During this period, heavy pressure, friction and other behaviors that damage the surface of the runway should be avoided. During the maintenance period, the runway should also be inspected regularly, and if there is any damage, it should be repaired in time.
6. Security Measures**
During the construction process, safety should always be the first priority. Construction personnel are required to wear protective equipment and comply with all safety regulations. At the same time, it is necessary to ensure that there are good ventilation conditions on the site to reduce the harm of harmful gases to the human body.
In short, the construction of the surface layer of the plastic runway is a highly technical work, which requires strict compliance with the process flow and precautions. Only in this way can we ensure that a high-quality plastic track is laid to provide an excellent competition and training environment for athletes.