Chloride Analysis of Concrete by Ion-Specific Potentiometry: Its Implementation in Virginia

Details

• Creators:
  O'Neal, W. G ; Clemeña, Gerardo G.
• Corporate Creators:
  Virginia Highway & Transportation Research Council
• Subject/TRT Terms:
  • Chlorides
  • Concrete tests
  • Concrete--Analysis
  • Chlorides
  • Potentiometry
• Publication/ Report Number:
  VHTRC 75-R21
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  In response to an urgent request from the Materials Division, a literature search was conducted to find a suitable analytical method for the determination of chloride in hardened concrete. It was found that an ion-specific potentiometric method employing a chloride-extraction procedure improved by H. A. Berman of the Federal Highway Administration was the best available. Subsequent laboratory evaluation of this method indicated it to be good as far as accuracy and precision are concerned; however, modifications were needed, specifically on the titration procedure, to reduce analysis time and to eliminate analytical uncertainty involved when samples have extremely low chloride contents. Consequently, important modifications were made and a final analytical procedure is recommended for implementation by the Department.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19916/dot_19916_DS1.pdf
• File Type:
  [PDF - 1.02 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:88bf62598df44960ba46f20393e97bde0bba02feec1c828ed62712efcfd797b68ff7b21a67ce044fbbd8642d12ff0e6b7e6e598a2184ed9309eb508f84be458f