Corrugated Culvert Steel Corrugated Culvert Pipe Anticorrosion

The first is the hot-dip galvanizing of Corrugated Culvert Pipes. The theoretical service life of Corrugated Culvert Pipes is about 100 years. In order to achieve a better anti-corrosion effect, we spray asphalt on the inner and outer walls of Corrugated Culvert Pipe , which is the second anti-corrosion. The second anti-corrosion should be Paint the mixture of asphalt and petroleum twice. From the outside, the inside and outside of the Corrugated Culvert Pipe  wall can be evenly painted into black pipes, but the asphalt must be dried before installation. The thickness of the asphalt coating on the outer wall of the Corrugated Culvert Pipe  is kept within 0.4mm-0.5mm.

The painting method is as corrugated culvert pipes

One: Thick asphalt paint containing asbestos fiber: The solvent of the paint is high-quality asphalt, and the content of asbestos powder is greater than or equal to 30%. The spraying method can be air-pressure spraying or brushing. The thickness of each spraying layer is 7mm-8mm, and the spraying amount is about one square meter and one kilogram. The surface of the sprayed object should be particularly dry and free of oil stains. Paint the Corrugated Culvert Pipe that is immersed in wastewater or below the normal water level.

Two: Mixture of asphalt and kerosene paint: The mixing ratio of asphalt and kerosene is 54:46. When using this paint, you should brush twice to make the total thickness of the coating layer reach 0.4mm-0.5mm, and the amount of brushing 0.6 kg per square meter. When conditions permit, spraying with a spray gun is better, and the Corrugated Culvert Pipe that is soaked in wastewater or below the normal water level is painted.

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