How UHDPE sleeves and epoxy coating helped extend marine pile longevity is Raysut
Overview
With splash zone corrosion damaging steel piles above the water level and tidal movement of pontoon guides over the piles creating abrasive damage through gradual reduction of thickness and added exposure to corrosion, a solution needed to be found.
Solution
The scope of the job involved dredging of the channel entrance and installation of steel pontoons with steel tubular piles inside the harbour breakwater.
The piles were coated with Glass flake Epoxy of 500 microns and this worked well with the pile guide’s Teflon (PTFE) pad.
For the first time in Oman heat shrinking of UHDPE (Ultra High density Poly ethylene) sleeves 2mm over the pile was done – the same process has been tried and tested in the UAE and has given the piles a service life of 8 to 10 years.
The subject project pile was tested during the worst of sea conditions and this included a cyclone.
Result
After more than a year there are no visible defects.
Conclusion
For Marinas and clients with higher budgets pile sleeving with a pile guide fitted with PTFE pads or rollers is recommended.
For commercial fishery pontoons Glass Flake epoxy coating with Teflon pads for pile guide would be adequate.
Case Studies
Port of Duqm
Supply of Gooseneck Terminal Trailers to transport heavy static material
Petroleum Development of Oman
Two ground surfaces that met FIFA and IAAF standards at the same facility in PDO Bahja
Ministry of Agriculture and Fisheries
How UHDPE sleeves and epoxy coating helped extend marine pile longevity is Raysut
Muscat Municipality
Oman’s first synthetic walkway created in Ruwi
Ministry of Education
Outdoor court using an 11mm thick PU surface for the Ministry of Education at Bidiyah School
Royal Oman Police – Traffic
The supply, installation, commissioning and training of an advanced Motor Vehicle Inspection System (MVIS)
