UNDERGROUND CORROSION

A BRIEF DIGEST IS PRESENTED OF A DISCUSSION LIMITED TO THE MECHANISM OF SALT PENETRATION INTO THE SOIL AND THE POSSIBLE EFFECTS OF INFILTRATED SOILS ON UNDERGROUND CORROSION. SALT PENETRATION IS RELATED TO UNDERGROUND PIPE CORROSION IN SEVERAL WAYS. INCREASED SALT CONCENTRATIONS REDUCE SOIL RESISTIVITY AND GENERALLY INCREASE THE CORROSIVENESS OF SOILS. THE NATURAL LEACHING PROCESS PRODUCES CONCENTRATION DIFFERENCES OVER NARROW DEPTHS WHICH CAN CREATE GALVANIC CELL CORROSION, THE IMPORTANCE OF WHICH WILL DEPEND ON THE STABILITY OF THE ANODE LOCATION. THESE EFFECTS ARE RELATED TO SOIL DRAINAGE. CONSTRUCTION PROCEDURES SHOULD BE CONTROLLED TO PROVIDE A UNIFORM AND WELL DRAINED SOIL AROUND PIPES. /PW/

• Authors:
  • Berthouex, P M
  • Prior, G A
• Publication Date: 1968-3

Media Info

• Serial:
  • Journal Awwa

Subject/Index Terms

• TRT Terms: Construction management; Corrosion; Drainage; Galvanic corrosion; Infiltration; Leaching; Pendulum tests; Pipe; Salts; Soils; Underground structures
• Old TRIS Terms: Underground corrosion
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Hydraulics and Hydrology; Materials;

Filing Info

• Accession Number: 00216635
• Record Type: Publication
• Source Agency: Public Works
• Files: TRIS
• Created Date: Sep 22 1994 12:00AM