Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367169" target="_blank" >RIV/68407700:21110/23:00367169 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/APP.2023.40.0015" target="_blank" >https://doi.org/10.14311/APP.2023.40.0015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2023.40.0015" target="_blank" >10.14311/APP.2023.40.0015</a>

Result language
angličtina
Original language name
Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy
Original language description
Porosity is an important part of cement paste microstructure, which significantlyinfluences the mechanical properties (especially durability and strength) of cement-based materials.Electrochemical impedance spectroscopy (EIS) is a non-destructive method used to measure the poresystem utilizing a range of frequencies of electric current, which is fed to the cement paste by stainlesssteel electrodes. The pore volume is obtained from the pore resistance and the matrix capacitancemeasured by EIS. This paper deals with the evaluation of porosity based on resistance values fromEIS on a sample of pure CEM I 42.5R Portland cement paste at 3 different hydration times (age 7, 14,28 days).
Czech name
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Czech description
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Project
<a href="/en/project/GA21-11965S" target="_blank" >GA21-11965S: Microstructural investigation and simulation of coupled physical fields in concrete due to electromigration treatments</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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