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To ensure the long-term and effective operation of road guardrails, they should be cleaned and maintained regularly. Specific maintenance measures include:

Daily inspection: Regularly inspect road guardrails to check whether the guardrails are intact and stable, whether the connectors are loose or falling off, and whether the surface coating is damaged. Problems should be recorded and reported in a timely manner.

Cleaning and rust removal: Guardrails with damaged or rusted surface coatings should be cleaned and rusted. When cleaning, you can use cleaning agents or high-pressure water guns and other tools to remove dirt, rust, etc. on the surface of the guardrail. When removing rust, you should use appropriate rust removers or mechanical rust removal methods to completely remove the rust.

Repair coating: After cleaning and rust removal, the guardrail should be repaired with coating. The coating material should have excellent weather resistance, corrosion resistance and adhesion. When repairing, the operation should be carried out in accordance with the construction requirements of the coating material to ensure the quality of the coating.

Tighten connectors: Loose connectors should be tightened in time. When tightening, appropriate tools and methods should be used to ensure that the connectors are firm and reliable.