| Issue |
MATEC Web Conf.
Volume 163, 2018
MATBUD’2018 – 8th Scientific-Technical Conference on Material Problems in Civil Engineering
|
|
|---|---|---|
| Article Number | 05007 | |
| Number of page(s) | 8 | |
| Section | Durability and Environmental Impact | |
| DOI | https://doi.org/10.1051/matecconf/201816305007 | |
| Published online | 15 June 2018 | |
The content of chlorides in blast-furnace slag cement as a factor affecting the diffusion of chloride ions in concrete
1
Warsaw University of Technology, Al. Armii Ludowej 16, Warsaw 00-637, Poland
2
Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, Lublin 20-290, Poland
* Corresponding author: jkuziak@il.pw.edu.pl
Blast-furnace slag cement (CEM III) has a wide range of acceptable Cl- content according to EN 197-1: 2012. This makes possible to use alternative fuels for the production of cement, which can increase the chlorides content in the clinker. However, it raises several new research problems, among them the problem of increase of the risk of Cl- penetration intensity due to the higher concentration of chlorides in cement, presented in this paper. Studies have shown that after a short hardening time (28 days) the rate of diffusion of chloride ions increases slightly with the increase in the content of chlorides in the cement CEM III, but after full stabilization of concrete properties (1 year), the content of chlorides in cement CEM III practically does not affect the diffusion rate of chloride ions in concrete.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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