A Method for the Evaluation of Frost Damage at different Moisture Contents and Temperatures based on Laboratory Measurements

Publikation: Beitrag in FachzeitschriftKonferenzartikelBeigetragenBegutachtung

Beitragende

Abstract

The frost damage of façade materials, especially bricks, is still a problem of importance, mainly for historical constructions. Existing tests like the freeze-thaw test (CDF test) use conditions of full water saturation and very low freezing temperatures, which most likely occur rather rarely in practice. Therefore, we conducted experiments on bricks with different moisture levels, using impulse excitation to determine the change in Young's modulus as damage assessment. The results show a strong decrease in Young's modulus and a clear dependence of the damage on the moisture content. We applied the results to a novel frost assessment method, which differentiates the damage potential of different parts of the pore system, based on the present temperature and moisture content.

Details

OriginalspracheEnglisch
Aufsatznummer012025
Seitenumfang8
FachzeitschriftJournal of Physics: Conference Series
Jahrgang2654
Ausgabenummer1
PublikationsstatusVeröffentlicht - 1 Dez. 2023
Peer-Review-StatusJa

Konferenz

Titel13th Nordic Symposium on Building Physics
UntertitelBuilding physics as a key player for sustainable built environment
KurztitelNSB 2023
Veranstaltungsnummer13
Dauer12 - 14 Juni 2023
Webseite
BekanntheitsgradInternationale Veranstaltung
OrtCreate Aalborg University
StadtAalborg
LandDänemark

Externe IDs

Scopus 85181172641
ORCID /0000-0001-6961-2812/work/150329860

Schlagworte

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

ASJC Scopus Sachgebiete

Schlagwörter

  • brick, frost damage, impulse excitation method, material properties

Bibliotheksschlagworte