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Construction Measures of Metal Corrugated Culvert in Rainy Period
Construction Measures of Metal Corrugated Culvert in Rainy Period:
1. rain construction should be arranged in advance, as far as possible in the rain before the arrival of the completion, waterproof facilities around the foundation pit, to prevent the surrounding water into the foundation pit.
2. Increase the detection frequency of sand and stone water content, adjust the concrete mix ratio in time, and ensure the concrete mixing quality.3. the metal corrugated culvert pipe should be strengthened to prevent corrosion.
When metal corrugated culvert pipe is connected, temporary awning should be set up to prevent erosion by rain.
4. Special attention should be paid to the protection of power supply lines. Cover and moisture-proof measures should be taken for the electrical gate box of the on-site mechanical and electrical equipment, and wires should be well insulated to prevent leakage and electric shock accidents.
Three, hot weather metal corrugated culvert construction measures:
1. hot period of concrete construction, should be mixing water to take cooling treatment measures, in order to control the concrete pouring temperature in 30℃ below, and should consider the high temperature of concrete collapse loss.
Concrete shall not be mixed with water during transportation.
2. if the conditions are available, should cover sunscreen, reduce the template and steel temperature;
Water can also be sprayed on the formwork and steel bar to cool down, but there can't be water or attached water in the formwork when pouring concrete.
3. concrete truck should be mixing device, and the tank should be sunscreen measures.
Concrete in the transportation process should be slow uninterrupted mixing, and minimize the transportation time.
4. The formwork should be removed within one day when the temperature is low, and the concrete surface should be moisturized and preserved for no less than 7 days after the removal of the formwork.
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