Determination of pH in Powdered Concrete Samples or in Suspension
Аутори
Stojanović, GoranRadovanović, Milan
Krstić, Dejan
Ignjatović, Ivan
Dragaš, Jelena
Carević, Vedran
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
pH value / concrete / microfluidics / capacitive sensor / xurographyИзвор:
Applied Sciences, 2019, 9, 16, 3257-Издавач:
- Basel : MDPI
Финансирање / пројекти:
- AQUASENSE - Innovative Network for Training in wAter and Food QUality monitoring using Autonomous SENSors and IntelligEnt Data Gathering and Analysis (EU-813680)
- Иновативне електронске компоненте и системи базирани на неорганским и органским технологијама уграђени у робе и производе широке потрошње (RS-32016)
- Истраживање могућности примене отпадних и рециклираних материјала у бетонским композитима, са оценом утицаја на животну средину, у циљу промоције одрживог грађевинарства у србији (RS-36017)
DOI: 10.3390/app9163257
ISSN: 2076-3417