Engineering Mechanics

Proceedings Vol. 29 (2023)

ENGINEERING MECHANICS 2023

29th INTERNATIONAL CONFERENCE
May 9 – 11, 2023, Milovy, Czech Republic

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Editors: Vojtěch Radolf and Igor Zolotarev

ISBN 978-80-87012-84-0 (printed)
ISBN 978-80-87012-84-0 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Estimation of porosity of cement composites from electrical properties and general effective media model

Chalupová J., Němeček J., Hybášek V., Němeček J.
pages 95 - 98, full text

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.

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Ownership of copyright in original research articles remains with the Authors, and provided that, when reproducing parts of the contribution, the Authors acknowledge and/or reference the Proceedings, the Authors do not need to seek permission for re-use of their material.

All papers were reviewed by members of the scientific committee.

Engineering Mechanics

International Conference

Proceedings Vol. 29 (2023)

ENGINEERING MECHANICS 2023