DICL Pipe Stand for Ductile Iron Concrete Lined Pipe that meets Australian and New Zealand standard AS/NZS, are sized to an independent specification, that is not compatible with European pipes even though the same nomenclature is used.
The primary form of lining for water treatment pipelines is cement mortar applied using a centrifugal spraying method during manufacturing. Cement mortar is a mixture of cement and sand in a ratio of 1:2 to 1:3.5. Silicate cement is typically used for drinking water pipelines, while sulfate-resistant cement or high-alumina cement is commonly used for sewage pipelines.
Why is an internal cement lining used? Studies have found that cement mortar lining can significantly reduce internal corrosion of pipelines. Because it is highly corrosive in drinking water and less corrosive wastewater. Cement mortar lining can effectively remove dust accumulated on the pipe walls.
How can we extend long term performance of ductile iron pipes in highly corrosive areas? Even in coastal areas, ductile iron pipes can reduce corrosion and delay it by using polyethylene sheathing, extending their service life to over a century. A real-world example is the Everglades in Florida, one of the most corrosive soil environments in North America. Using a composite anti-corrosion solution of zinc coating and polyethylene sheathing can extend the pipe’s lifespan to over 150 years, more than five times that of using zinc coating alone.
Post time: Mar-25-2026
