Track and field site cement concrete pouring method
Concrete structures on track and field facilities are typically small in scale and spread out across the site. Before pouring, it's essential to ensure that the construction area is well-prepared, including clear access roads, reliable power supply, properly installed electrical systems, and functional vibration equipment. These preparations are crucial for a smooth and efficient concrete pouring process.
When transporting concrete, it should be done using covered vehicles or mixing trucks to prevent moisture loss and contamination. For large-scale pours, such as the 3000m running obstacle pool, start from the lowest point and pour in layers. The first layer should not exceed 40 cm in height. After pouring, the concrete must be compacted using internal vibrators. The distance between vibrators should not be more than 1.5 times their working radius. Be careful not to hit the formwork or let the rebar touch the vibrator. Maintain a distance of 50–100 mm between the vibrator and the formwork, and insert the vibrator into the lower layer by 50–100 mm. When removing the vibrator, do so slowly to avoid creating air holes in the concrete. Each section must be fully vibrated until the concrete stops settling, bubbles stop rising, and the surface becomes smooth. Avoid keeping the vibrator in one spot for too long, as this can cause separation of the mortar and aggregates within the mix.
Once the concrete is poured, immediate curing is necessary to prevent cracking caused by temperature fluctuations, wind, and direct sunlight. This helps maintain the strength and durability of the structure over time.
At the same time, a dedicated staff member should be present during the pouring process to monitor the quality and ensure everything goes according to plan. Any irregularities or issues should be addressed immediately to avoid delays or structural problems later on.
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