PROTECTION OF MOORING BUOYS. PART 5. FOURTH RATING INSPECTION

Abstract

This is the fifth of a series of reports on the protection of mooring buoys. Fourteen test buoys were given their fourth rating for extent of coating deterioration, corrosion of steel, and fouling. Another buoy was so deteriorated it was removed from test. Exposure periods vary for the buoys. The coating systems on eight of the buoys were in good condition and six showed varying degrees of moderate deterioration. Two sets of thirteen test panels coated with the systems used on the buoys were rated for the third time after 18 months exposure, and results showed a general correlation. Environmental corrosion is supplemented by abrasion of buoys by mooring naval vessels. Three of the buoys were cathodically protected with a sacrificial magnesium anode, a control head, and a zinc anode, united directly to the ground cable, was substituted for the magnesium and potentials were increased to the desired magnitude.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 04, 1965
Accession Number
AD0611410

Entities

People

  • Richard W. Drisko

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Antifouling Coatings
  • Barnacles
  • Bays
  • Buoys
  • Cathodic Protection
  • Civil Engineering
  • Coast Guard
  • Corrosion
  • Delamination
  • Engineering
  • Engineers
  • Materials
  • Naval Vessels
  • Protective Coatings
  • Resistance
  • Ships
  • Tars

Readers

  • Materials Science and Engineering.
  • Oceanography.
  • Surface Coatings Technology.