The inner surfaces of the pipes used for the transportation of drinking water are covered with concrete. Concrete, which is used to protect the inner surfaces of pipes against corrosion, is preferred because of its good adhesion to the steel surface, smoothness of the surface and durability of the coating.
Today, concrete mortars prepared by adding chemical additives produced in accordance with drinking water quality provide a higher adhesion between the mortar inputs (sand, cement) and the adhesion of the mortar to the steel surface.
Applications with additives also allow for an equivalent lower coating thickness.
Concrete coating is applied according to AWWAC 205, EN 10298, TS 8590 standards.