Corrosion has become an increasing threat to the integrity of offshore structures including pipelines, casing, well casings and tubings world wide. Failure of all or part of these structures may in many cases have disastrous consequences and results in lost production revenues and significant costs for re-establishing the structure.
No chloride diffusion
Densit® UHPC materials offer a durable and cost effective solution for corrosion protection due to its very low chloride diffusion being in the order of 0.6x10-13 m2/sec, which is in the order of 1/50 of other cementitious materials. Low shrinkage of the grout ensures that it remains in physical contact with steel and concrete surfaces after curing.
In addition to the unique corrosion protection offered by Densit® UHPC materials, the high strength and the high bonding between the steel and concrete also leads to improvements in the structural integrity of the structure.
Densit® UHPC materials have been applied for corrosion protection of:
• Piled jetty structures
• Conductors
• Sump caisson
• Steel piles