| Issue |
MATEC Web Conf.
Volume 199, 2018
International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2018)
|
|
|---|---|---|
| Article Number | 07011 | |
| Number of page(s) | 9 | |
| Section | Repair Materials and Systems | |
| DOI | https://doi.org/10.1051/matecconf/201819907011 | |
| Published online | 31 October 2018 | |
Underwater Abrasion Resistance of Cementitious Acrylic Coating on Repaired Surface of Concrete Dam and Stilling Basin
1
IRMA Institute for Research in Materials and Applications, Slovenčeva 95, 1000 Ljubljana, Slovenia
2
University of Ljubljana, Faculty of Civil and Geodetic Engineering, Department of Environmental Civil Engineering, Jamova 2, 1000 Ljubljana, Slovenia
* Corresponding author: jakob.sustersic@irma.si
The paper presents and analyzes the results of the underwater abrasion tests of Cementitious Acrylic Coating (CAC), which was used to protect the repaired surface of concrete dam and stilling basin of power-plant Moste on river Sava in Slovenia. Behavior of the CAC obtained with laboratory tests is rather similar to the behavior obtained after 1 year of application on the power-plant. Relatively good underwater abrasion resistance of CAC was obtained. Results of bond strength show that pressure of capillary water decreases bond between CAC and concrete surface. If such coating is additional loaded with abrasion forces, bond between those two layers becomes worse. Similar conclusions can be made on the basis of the obtained results of surface resistance to freeze-thaw test of CAC has been carried out. The resistance is rather good, but CAC separated from concrete surface, when water is present in the interface between the CAC and concrete surface during freeze-thaw loading.
© 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 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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