Do Coated Pipes Last Longer?

摘要

Culvert pipe is usually submerged, filled with sediment or placed in a remote location, making inspections difficult at best. Pipe deterioration often goes undetected until a catastrophic failure results. So the best way to avoid expensive damage is to select the most suitable material for the corrosive conditions of the location. In areas where soil and water are particularly corrosive to most culvert materials, coatings can provide barrier protection that extends the service life. Asphalt coating and paving, the old standby for protecting steel pipe from abrasion and chemical attack, have in recent years been increasingly replaced by new polymer coatings that surpass asphalt's poor aging characteristics.