ESTIMATION OF POROSITY OF CEMENT COMPOSITES FROM ELECTRICAL PROPERTIES AND GENERAL EFFECTIVE MEDIA MODEL

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367176" target="_blank" >RIV/68407700:21110/23:00367176 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.21495/em2023-95" target="_blank" >https://doi.org/10.21495/em2023-95</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/em2023-95" target="_blank" >10.21495/em2023-95</a>

Result language
angličtina
Original language name
ESTIMATION OF POROSITY OF CEMENT COMPOSITES FROM ELECTRICAL PROPERTIES AND GENERAL EFFECTIVE MEDIA MODEL
Original language description
This paper studies electrical properties of ordinary Portland cement paste and mortar. Electrochemical impedance spectroscopy was used to evaluate the resistance of the solid phase and the connected capillary pores. Based on the knowledge of the resistances and the composition of the used composites, the porosity was evaluated by a general effective media model. Helium pycnometry and gravimetric method were used to calibrate the model parameters. The porosity of the material was then determined at different hydration times.
Czech name
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Czech description
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Project
<a href="/en/project/GA23-05435S" target="_blank" >GA23-05435S: Nanomechanical performance of cementitious composites under radiation impact and variable environmental actions</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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