USE OF PAINTS WITH A HIGH ZINC CONTENT FOR PROTECTING CIVIL ENGINEERING STRUCTURES AGAINST CORROSION

UTILISATION DES PEINTURES RICHES EN ZINC POUR LA PROTECTION ANTICORROSION DES OUVRAGES EN GENIE CIVIL

Paints with a high zinc content have become extensively used in France for the protection of civil engineering structures over the last few years for technical and economic reasons. Because sanding has been prohibited, scouring has to be carried out in the workshop, thus leading to a complete modification of the planning process on the site, as temporary protection becomes necessary because of delays in covering the metal. For technical and economic reasons, zinc was selected. A brief study is presented of various types of zinc paint used and of their main application to bridges. The results obtained lead to the following conclusions: (1) it is essential that paints with a high zinc content be adequately covered with sealing products; (2) the final result is not improved by increasing the thickness of the zinc layers at the expense of the sealing layers; (3) paints with a high zinc content are an excellent protective system against corrosion and facilitate the planning on site; (4) these products can also be used in thick coats without a cover where they are not visible, e.g. for components not visible in a rural environment. /TRRL/

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Serres, A M
• Publication Date: 1977-1-2

Language

• French

Media Info

• Features: Photos;
• Pagination: p. 142-147
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 87
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Bridges; Coatings; Corrosion; Corrosion protection; Economics; Environmental protection; Maintenance; Paint; Pavement layers; Permeability; Prevention; Protective coatings; Seal coating; Structures; Thickness; Zinc; Zinc coatings; Zinc rich paint
• Uncontrolled Terms: Bridge maintenance; Overlapping; Use
• ITRD Terms: 3455: Bridge; 5252: Corrosion; 2952: Layer; 9059: Overlapping; 3807: Paint; 5921: Permeability; 9149: Prevention; 9084: Use; 7189: Zinc
• Subject Areas: Bridges and other structures; Economics; Environment; Geotechnology; Highways; Maintenance and Preservation; Materials; Security and Emergencies; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00173059
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Apr 12 1978 12:00AM