In recent years, plastic tracks have gained popularity among primary, middle, and high schools, with breathable and composite plastic tracks particularly favored. This has led to stringent construction standards for composite plastic tracks.
Construction considerations for mixed塑胶track:
During the construction of a mixed plastic track, moisture and the adhesive slurry can cause a large bubble if they come into contact with a drop of water before initial curing. Therefore, workers must prepare towels to wipe sweat in the hot conditions. When laying the surface of a mixed plastic track, it's essential to monitor the weather conditions and have emergency measures in place to prevent sudden showers.
2. The timing for laying a mixed塑胶 track should be avoided during the morning when atmospheric and ground humidity are high. Even on clear, normal working days, it's generally best to start laying after 9 a.m. The actual thickness of the rubber surface refers to the distance from the rubber base to the center of the top rubber granules, which is generally controlled from two aspects.
3. Initially, thickness dimensions are pre-inspected through molding. Areas of the base that are locally elevated are trimmed or hammered down. If the elevation is minimal, a level scraper with a clamp can be used to ensure thickness during demolding. For the mixed-type plastic track's main competition area, thickness is guaranteed with a positive tolerance control, thus the average thickness is above 14MM.
4. To prevent bubbling and peeling after the rubber surface is laid, the compactness of the base layer for mixed塑胶track must be strictly controlled. This prevents the asphalt foundation layer from being poorly compacted, leading to peeling and delamination, resulting in poor bonding strength, surface vaporization, and the rubber surface being pulled apart. In areas where the base layer is not compact enough, reinforcement can be achieved by drilling holes and injecting adhesive.
To ensure the flatness and gradient of the composite plastic track, after the mold strips are nailed down, a level is used for simulated calibration. For the sub-base of the composite plastic track, areas that are too high are first leveled, and areas that are too low are filled with adhesive.
