CONCRETE WEIGHT COATING (CWC) INTRODUCTION

• CWC is a plant-applied coating used to achieve negative buoyancy for offshore pipelines or river/road crossing applications； 

• PALM-BRI uses a compression wrap process which keeps the anti-corrosion coating free of damage. Concrete is applied by wrapping a uniform layer while simultaneously wrapping reinforcing wire within the concrete  coating for stability

• A calculated mixture of cement, sand, iron ore and wire wrap is applied to a predetermined thickness level

• PALM-BRI’s CWC system is typically used in conjunction with other coating systems such as FBE and 3LP

• PALM-BRI offers integrated anode installation to maintain the integrity of the cathodic protection system.

• PALM-BRI also uses various methods to avoid slippage between the concrete layer and anti-corrosion coating, such as adding a rough-coat layer or applying a 2-component epoxy adhesive to bond the concrete to the coated surface ;

• PALM-BRI has a containerized mobile CWC plant that offers CWC application in close proximity to the project site.

• PALM-BRI has coated over1 million Mtrs. of pipe with CWC to date .

 PRIMARY SPECIFICATIONS

² Pipe sizes between Ø8 and Ø56 inch

² Pipe lengths from 26 to 60 ft (8 to 18 meter)

² Output up to 400 metric tons per hour

² Densities from 2250 to 3400 Kg/M3