Supplanting the rapid chloride permeability test with a quick measurement of concrete conductivity.
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields



Document Data
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page


Supplanting the rapid chloride permeability test with a quick measurement of concrete conductivity.

Filetype[PDF-432.07 KB]



  • Creators:
  • Corporate Creators:
  • Subject/TRT Terms:
  • Publication/ Report Number:
  • Resource Type:
  • Geographical Coverage:
  • Edition:
    Final report;JanuaryAugust 2004.
  • Corporate Publisher:
  • Abstract:
    The rapid chloride permeability test (RCPT) (AASHTO T 277, ASTM C 1202) is increasingly being used as an acceptance test for concrete constructions in the transportation industry. As more and more projects are subject to such testing, the capabilities of agency laboratories to conduct the test in a timely fashion are strained. A literature review regarding the RCPT revealed that the electrical conductivity of concrete is a more valid indicator of its quality than the RCPT result and that the conductivity can be determined from a measurement of the current taken 1 to 10 minutes after the voltage is applied using the standard equipment setup. A series of tests was conducted that estimated the within-laboratory precision of the conductivity measurement and the standard 6-hour RCPT. Comparison of the estimates indicated that the conductivity measurement is more precise than the RCPT. Conductivity values were calculated from a large block of RCPT data, and regression analysis was used to examine the relationship between the two measures. Confidence limits for the regression can be used to determine the range of RCPT values expected from a given conductivity value to facilitate shifting from an RCPT-based criterion to one based on concrete conductivity. The benefits of implementing these recommendations provided would be as follows: - Routine acceptance testing of concrete for chloride permeability would be streamlined without increased cost - Such acceptance testing could be conducted within 1 to 10 minutes, as compared to 6 hours for the existing test procedure, thus greatly reducing the backlog associated with such testing. This would permit the timely reporting of test results to project personnel and allow more effective management. - The new test recommended has improved repeatability when compared with the current test.
  • Format:
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at