Effect of the Pore Size of Cement Based Materials on Migration Tests

Author(s): Quang Hung Nguyen (1,2), Sylvie Lorente (1) and Anne Duhart-Barone (2)
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 224-231
Total Pages: 8
Language : English

Abstract: The study of the electrochemical behaviour of the cement-based materials / pore solution
interface is an important topic in order to understand the transport of ionic species. It is also
relevant for the purpose of interpreting the experimental results obtained in ionic transport tests
(natural diffusion, or migration). The inherent issue in the interpretation of experimental results
from ionic transport tests is the link between transport phenomena occurring at pore scale and
the access to only macroscopic data and results. We demonstrate here that the pore size has
impact on the results on ionic concentrations distribution at macroscopic scale. This works
helps to understand why the results of migration tests may lead to wrong interpretations in
terms of material conductivity and ionic diffusivity.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00