<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Frost damage on the concrete surface might be aggravated when freezing occurs in the presence of a salt solution, like sea water or de-icing salt. A possible mechanism behind this combination of frost and salt is discussed. When freezing takes place in pure water, ice formed at the surface will block inflow of water to the concrete, but it will cause drying of the concrete. When freezing occurs in salt solution, unfrozen water (brine) can enter the concrete surface and make the concrete completely saturated. When pore water freezes, it exerts pressure. The effect of air-entrainment is favourable since it reduces the stresses. A calculation is made of the air requirement for concrete with w/c-ratio 0.45.</p>
</abstract>

Frost damage on the concrete surface might be aggravated when freezing occurs in the presence of a salt solution, like sea water or de-icing salt. A possible mechanism behind this combination of frost and salt is discussed. When freezing takes place in pure water, ice formed at the surface will block inflow of water to the concrete, but it will cause drying of the concrete. When freezing occurs in salt solution, unfrozen water (brine) can enter the concrete surface and make the concrete completely saturated. When pore water freezes, it exerts pressure. The effect of air-entrainment is favourable since it reduces the stresses. A calculation is made of the air requirement for concrete with w/c-ratio 0.45.

Interpretation of the Result of a Traditional Salt-Frost Scaling Test

Lund Institute of Technology Lund University

Nordic Concrete Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Interpretation of the Result of a Traditional Salt-Frost Scaling Test"}

Frost damage on the concrete surface might be aggravated when freezing occurs in the presence of a salt solution, like sea water or de-icing salt. A possible...

Interpretation of the Result of a Traditional Salt-Frost Scaling Test

Online veröffentlicht: 05. Juli 2024

Seitenbereich: 57 - 75

Eingereicht: 19. Feb. 2024

Akzeptiert: 17. Juni 2024

DOI: https://doi.org/10.2478/ncr-2024-0002

Schlüsselwörter
Frost resistance, salt-frost scaling, air-entrainment, hydraulic pressure

© 2024 Göran Fagerlund., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Interpretation of the Result of a Traditional Salt-Frost Scaling Test

Online veröffentlicht: 05. Juli 2024

Seitenbereich: 57 - 75

Eingereicht: 19. Feb. 2024

Akzeptiert: 17. Juni 2024

DOI: https://doi.org/10.2478/ncr-2024-0002

SchlüsselwörterFrost resistance, salt-frost scaling, air-entrainment, hydraulic pressure

© 2024 Göran Fagerlund., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
Frost resistance, salt-frost scaling, air-entrainment, hydraulic pressure