PROTECTION OF REINFORCING STEEL AGAINST CORROSION

OBSERVATIONS MADE ON REINFORCED CONCRETE STRUCTURES IN AN ENVIRONMENT WITH A HIGH CHLORIDE CONTENT (E.G.) MARINE ENVIRONMENTS) SHOW THAT THE DEPT OF SALT PENETRATION INTO HIGH-QUALITY CONCRETE EXCEEDS THE PRACTICAL LIMIT OF THE THICKNESS OF THE CONCRETE COVER. THIS ARTICLE REVIEWS METHODS OF INHIBITING STEEL CORROSION IN CONCRETE: CATHODIC PROTECTION OF THE STEEL, ZINC AND CADMIUM COATINGS, AND POLARIZATION WITH THE HELP OF AN EXTERNAL GENERATOR. THE MOST ECONOMICAL WAY OF REDUCING STEEL CORROSION IN LARGE STRUCTURES IS TO SEAL THE CONCRETE SURFACE WITH AN APPROPRIATE SURFACE COATING. THE MOST DIRECT WAY OF SOLVING THE PROBLEM IS TO INCREASE THE RESISTANCE OF THE REINFORCING STEEL TO CHLORIDE. /TRRL/

• Authors:
  • Gjorv, O E
• Publication Date: 1972

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 19-30
• Serial:
  • Nordisk Betong /Sweden/
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Cadmium; Chlorides; Coatings; Corrosion protection; Pendulum tests; Polarization; Reinforced concrete; Sealing (Technology); Sodium chloride; Sodium chloride; Steel; Zinc
• Old TRIS Terms: Sealing
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217412
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: Dec 13 1972 12:00AM