Comparative Study of Procedures for the Analysis of Chloride in Hardened Concrete

Details

• Creators:
  Clemeña, Gerardo G. ; Reynolds, John W ; McCormick, Randy
• Corporate Creators:
  Virginia Highway & Transportation Research Council ; Virginia. Dept. of Highways and Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridges
  • Concrete bridges
  • Testing
  • Analysis
  • Chlorides
• Publication/ Report Number:
  VHTRC 77-R7
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  In the widely used potentiometric titration procedure for the analysis of chloride in powdered hardened concrete samples, difficulties have often been encountered when determining the endpoint. These difficulties have been eliminated through the use of the Gran method of endpoint determination, which also simplifies the titrations and improves the overall precision of the procedure. Using test specimens, the accuracy of this improved potentiometric titration procedure was evaluated by comparison with the atomic absorption and neutron activation procedures developed for the same analysis. The comparison indicated that the improved potentiometric titration procedure is the simplest and most economical of the three, and possibly is the most accurate.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19802/dot_19802_DS1.pdf
• File Type:
  [PDF - 4.13 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:c713f7cad98419ff70731958221435178cea7744201cc740b92e1a6417c1b3796e5022e72ec7f2d5e4c07596b3537ee0d9e09dc52be8944bf33e7086bf7e2d96