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https://open.uns.ac.rs/handle/123456789/146
Title: | Determination of pH in powdered concrete samples or in suspension | Authors: | Stojanović, Goran Radovanović, Milan Krstić, Đorđe Ignjatović I. Dragaš J. Carević V. |
Issue Date: | 1-Aug-2019 | Journal: | Applied Sciences (Switzerland) | Abstract: | © 2019 by the authors. Concrete is a material that is widely used by mankind. Although different deterioration mechanisms can lead to degradation of the concrete itself, reinforcement corrosion is the biggest durability issue for reinforced concrete structures. One of the key parameters influencing the corrosion rate is pH value. Accordingly, this work presents two capacitive sensor platforms-one based on parallel plate electrodes and the other based on a planar interdigitated electrode structure. The first platform is used to determine whether the pH value is lower or higher than a predetermined limit (around 11) and this device was successfully tested using concrete suspensions. The second platform can determine the pH value by establishing a relationship between pH and measured capacitance from a powdered concrete specimen. Both multi-layered platforms were manufactured by means of a cost-effective xurography technique, which provides technically and mechanically robust structures very quickly. | URI: | https://open.uns.ac.rs/handle/123456789/146 | DOI: | 10.3390/app9163257 |
Appears in Collections: | FTN Publikacije/Publications |
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