Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy
Porosity is an important part of cement paste microstructure, which significantly influences the mechanical properties (especially durability and strength) of cement-based materials. Electrochemical impedance spectroscopy (EIS) is a non-destructive method used to measure the pore system utilizing a...
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| Format: | Article |
| Language: | English |
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CTU Central Library
2023-07-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/9213 |
| _version_ | 1827866087094484992 |
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| author | Jana Chalupová Jiří Němeček Vojtěch Hybášek Vojtěch Pommer Jiří Němeček |
| author_facet | Jana Chalupová Jiří Němeček Vojtěch Hybášek Vojtěch Pommer Jiří Němeček |
| author_sort | Jana Chalupová |
| collection | DOAJ |
| description |
Porosity is an important part of cement paste microstructure, which significantly influences the mechanical properties (especially durability and strength) of cement-based materials. Electrochemical impedance spectroscopy (EIS) is a non-destructive method used to measure the pore system utilizing a range of frequencies of electric current, which is fed to the cement paste by stainless steel electrodes. The pore volume is obtained from the pore resistance and the matrix capacitance measured by EIS. This paper deals with the evaluation of porosity based on resistance values from EIS on a sample of pure CEM I 42.5R Portland cement paste at 3 different hydration times (age 7, 14, 28 days).
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| first_indexed | 2024-03-12T14:57:57Z |
| format | Article |
| id | doaj.art-d90e6f7799da4d7c804c1911e2ffbabd |
| institution | Directory Open Access Journal |
| issn | 2336-5382 |
| language | English |
| last_indexed | 2024-03-12T14:57:57Z |
| publishDate | 2023-07-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj.art-d90e6f7799da4d7c804c1911e2ffbabd2023-08-14T12:14:27ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822023-07-014010.14311/APP.2023.40.0015Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopyJana Chalupová0Jiří Němeček1Vojtěch Hybášek2Vojtěch Pommer3Jiří Němeček4Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicUniversity of Chemistry and Technology, Department of Metals and Corrosion Engineering, Technická 5, 166 28 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Material Engineering and Chemistry, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech Republic Porosity is an important part of cement paste microstructure, which significantly influences the mechanical properties (especially durability and strength) of cement-based materials. Electrochemical impedance spectroscopy (EIS) is a non-destructive method used to measure the pore system utilizing a range of frequencies of electric current, which is fed to the cement paste by stainless steel electrodes. The pore volume is obtained from the pore resistance and the matrix capacitance measured by EIS. This paper deals with the evaluation of porosity based on resistance values from EIS on a sample of pure CEM I 42.5R Portland cement paste at 3 different hydration times (age 7, 14, 28 days). https://ojs.cvut.cz/ojs/index.php/APP/article/view/9213electrochemical impedance spectroscopycement pasteporosity |
| spellingShingle | Jana Chalupová Jiří Němeček Vojtěch Hybášek Vojtěch Pommer Jiří Němeček Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy Acta Polytechnica CTU Proceedings electrochemical impedance spectroscopy cement paste porosity |
| title | Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| title_full | Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| title_fullStr | Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| title_full_unstemmed | Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| title_short | Measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| title_sort | measurement and evaluation of cement paste porosity by electrochemical impedance spectroscopy |
| topic | electrochemical impedance spectroscopy cement paste porosity |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/9213 |
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