Accelerated test method for chloride resistance - comparison between different test methods

Title: Accelerated test method for chloride resistance - comparison between different test methods
Author(s): M.R. Jones, T.A. Harrison, Z.F. Abu Hassan
Paper category : conference
Book title: 3rd International PhD Workshop on Modelling the Durability of Reinforced Concrete
Editor(s): R. M. Ferreira, J. Gulikers, C. Andrade
Print-ISBN: 978-2-35158-095-0
e-ISBN: 978-2-35158-094-3
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 10 - 19
Total Pages: 10
Nb references: 13
Language: English

Abstract: This paper reports a comparison between two two-cell migration tests. Both tests were different geometrically and use different equations to arrive at the relative chloride coefficient of diffusion index. It was shown that the difference in test geometry and equations results in a magnitude difference in the measurements but the ranking of concrete would be parallel for both tests. The same ranking trend should again appear when specimens are tested at a later age. Parameters for both tests were matched using 1 Molar NaCl f or the upstream solution and 12 Volt DC potential. A special cell was made to provide a matching anode-to-cathode distance. Both test equations was also subjected to sensitivity analysis to gauge the impact on the variation of parameters to the result ca lculations. Once the geometery was matched both tests gave almost similar results but underlined the need for a standard test methodology.

Online publication: 2010-02-22
Publication type : full_text
Public price (Euros): 0.00