COMPARATIVE STUDY OF PROCEDURES FOR THE ANALYSIS OF CHLORIDE IN HARDENED CONCRETE

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 titration and improves the overall precision of the method. 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 titration procedure is the simplest and most economical of the three and possibly is the most accurate.

• Record URL:
  http://www.virginiadot.org/vtrc/main/online_reports/pdf/77-r7.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/19802
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/73293160
• Supplemental Notes:
  • Sponsored in part by Virginia Dept. of Highways and Transportation, Richmond, and Virginia Univ., Charlottesville.
• Corporate Authors:

  Virginia Highway and Transportation Research Council

  Charlottesville, VA  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Virginia Department of Highways

  Traffic and Planning Division, 1221 East Broad Street
  Richmond, VA  United States  23219

  University of Virginia, Charlottesville

  Center for Transportation Studies, P.O. Box 400742
  Charlottesville, VA  United States  22904-4742
• Authors:
  • Clemena, G G
  • Reynolds, J W
  • McCormick, R M
• Publication Date: 1976-8

Media Info

• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Absorption spectra; Accuracy; Alternatives analysis; Atomic physics; Chemical analysis; Chlorides; Concrete; Concrete hardening; Neutron activation analysis; Performance evaluations; Potentiometers; Resonance; Spectroscopy; Spectrum analysis; Volumetric analysis
• Uncontrolled Terms: Hardened concrete
• Old TRIS Terms: Atomic absorption; Atomic spectroscopy
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00169788
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-77- 84 Final Rpt., VHTRC-77-R7
• Files: NTIS, NTL, TRIS, USDOT, STATEDOT
• Created Date: Mar 14 1978 12:00AM