Developing a modified rapid chloride permeability test for mortar concrete

Author(s): A.A. Ramezanianpour, A.R. Pilvar, M. Mahdikhani, F. Moodi
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 103 – 104
Total Pages: 2
Language: English

This paper describes the development of a very rapid test method which can measure the permeability of concrete against chloride ions. Once the sample preparation stage has been completed, up to 15 concrete specimens can be tested in one hour using a single conductivity cell. The test involves saturating a concrete specimen with a 30% NaCl solution before measuring the conductivity of the sample. By saturating specimens with a highly conductive solution, they showed virtually the same pore water conductivity. Different concrete samples yield different conductivity levels primarily due to differences in their pore structure. The measured conductivity was observed to be related to the diffusivity ratio as well as the chloride diffusivity of the concrete.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00