A New Accelerated Rapid Chloride Permeability Test for Measuring Permeability of HPC for Highway and Bridge Applications

This paper presents the results of an experimental study to develop a new accelerated Rapid Chloride Permeability Test (RCPT). This research was conducted as part of a project for the South Dakota Department of Transportation (SDDOT). The present ASTM C1202 test method “Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration” recommends that concrete specimens shall be cured for 56 days prior to testing them for chloride permeability. This curing period would have to be further extended to 90 days for high performance concretes made with fly ash and silica fume. Curing concrete specimens for 90 days would allow the internal microstructure of concrete to fully develop due to conclusion of hydration process. Therefore it is essential to wait for 90 days to determine accurately the chloride permeability of concrete, unless there is another method, which can be used to accelerate the curing process. This paper aims to use an accelerated curing process to determine the chloride permeability values within a shorter duration.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 133-148
  • Monograph Title: Ninth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag and Natural Pozzolans in Concrete

Subject/Index Terms

Filing Info

  • Accession Number: 01053850
  • Record Type: Publication
  • ISBN: 139780870312410
  • Report/Paper Numbers: SP-242-11
  • Files: TRIS
  • Created Date: Jul 16 2007 12:54PM