| Issue |
MATEC Web Conf.
Volume 361, 2022
Concrete Solutions 2022 – 8th International Conference on Concrete Repair, Durability & Technology
|
|
|---|---|---|
| Article Number | 07003 | |
| Number of page(s) | 5 | |
| Section | Theme 7 - Performance Evaluation | |
| DOI | https://doi.org/10.1051/matecconf/202236107003 | |
| Published online | 30 June 2022 | |
Surface resistivity for assessing the chloride transport through ultra-high-performance concrete
1 Professor, Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, 4505 S Maryland Pkwy Street, Las Vegas, USA
2 Graduate student, Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, 4505 S Maryland Pkwy Street, Las Vegas, USA
3 PhD candidate, Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, 4505 S Maryland Pkwy Street, Las Vegas, USA
Email: Nader.ghafoori@unlv.edu
Email: nasirf1@unlv.nevada.edu
* Corresponding author: hasnat@unlv.nevada.edu
In this study, surface resistivity of the non-proprietary ultra-high-performance concretes (UHPCs) using traditional aggregates were evaluated. Four plain UHPCs were batched using various cementitious materials at a constant water-to-cementitious materials ratio of 0.21 with an aggregate-to-cementitious materials ratio of 1.20. The 28-day surface-resistivity was measured for a duration of 60 minutes (10 minutes intervals). The influence of testing time on surface resistivity of the studied UHPCs was also examined. The results of this study highlighted that surface resistivity of UHPC could be used with confidence to assess its chloride penetration resistance. The outcome of the study also revealed that the binary blend UHPC containing silica fume, as a partial replacement of Portland cement, displayed the highest surface resistivity, lowest chloride ion penetration, and highest compressive strength amongst the studied UHPCs. Time of testing had a minor effect on surface-resistivity of the studied UHPCs.
© The Authors, published by EDP Sciences, 2022
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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.