Determination of pH in Powdered Concrete Samples or in Suspension
Autori
Stojanović, GoranRadovanović, Milan
Krstić, Dejan
Ignjatović, Ivan
Dragaš, Jelena
Carević, Vedran
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
pH value / concrete / microfluidics / capacitive sensor / xurographyIzvor:
Applied Sciences, 2019, 9, 16, 3257-Izdavač:
- Basel : MDPI
Finansiranje / projekti:
- AQUASENSE - Innovative Network for Training in wAter and Food QUality monitoring using Autonomous SENSors and IntelligEnt Data Gathering and Analysis (EU-813680)
- Inovativne elektronske komponente i sistemi bazirani na neorganskim i organskim tehnologijama ugrađeni u robe i proizvode široke potrošnje (RS-32016)
- Istraživanje mogućnosti primene otpadnih i recikliranih materijala u betonskim kompozitima, sa ocenom uticaja na životnu sredinu, u cilju promocije održivog građevinarstva u srbiji (RS-36017)
DOI: 10.3390/app9163257
ISSN: 2076-3417