Corrosion Protection

History & Application Cement mortar has been used to line pipe since the 1840s. In the 1920s the process of centrifugal spinning was perfected. This process allowed the rapid application of linings to the entire pipe surface by placing a mixture of sand, cement and water into the pipe and rotating it at high speed. The centrifugal forces distribute the lining around the pipe circumference and compact it against the pipe wall. At the same time excess water is spun out, leaving a smooth surface mortar, with a very low water to cement ratio. Together with the low void content this results in a strong, low permeability cement mortar lining. Note these ...  Read more