Surface Resistivity Profiles on Marine Substructures to Assess Concrete Permeability

Surface resistivity profiles (using a wenner probe) as a function of elevation are being measured on young and mature marine reinforced concrete substructures at and above mean water line on bridges at coastal locations in Florida. The surface resistivity values measured are correlated with chloride diffusion coefficients measured from the same structures. Additionally the wet resistivity values from cored specimens are also correlated to the chloride diffusivity. Previous lab work suggests that a good correlation exists on saturated concrete between these two parameters. The objective of this study is to assess whether a similar correlation can be obtained from field surface resistivity readings, such that surface resistivity could potentially be used as performance based monitoring of new and older structures. Preliminary results suggest that a conditioning method needs to be applied on-site to approximate water saturation conditions at the elevations of interest.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415593168
• Corporate Authors:

  CRC Press/Balkema

  P.O. Box 447
  2300 AK Leiden,   Netherlands 
• Authors:
  • Presuel-Moreno, F J
  • Suarez, A
  • Lasa, I
  • Paredes, M
• Conference:
  • Sixth International Conference on Concrete under Severe Conditions: Environment and Loading
  • Location: Merida Yucatan, Mexico
  • Date: 2010-6-7 to 2010-6-9
• Publication Date: 2010-7-5

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: pp 227-235
• Monograph Title: Concrete under Severe Conditions: Environment and Loading. Proceedings of the 6th International Conference on Concrete Under Severe Conditions (CONSEC'10), Merida, Yucatan, Mexico, 7-9 June 2010

Subject/Index Terms

• TRT Terms: Bridge substructures; Chloride content; Electrical resistivity; Permeability; Reinforced concrete bridges; Resistivity method
• Uncontrolled Terms: Marine environment; Surface resistivity
• Geographic Terms: Florida
• Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01373691
• Record Type: Publication
• ISBN: 9780415593168
• Files: TRIS
• Created Date: Jun 25 2012 2:40PM