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

Research output: Contribution to journalConference articleContributedpeer-review

Contributors

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

Original languageEnglish
Article number012025
Number of pages8
JournalJournal of Physics: Conference Series
Volume2654
Issue number1
Publication statusPublished - 1 Dec 2023
Peer-reviewedYes

Conference

Title13th Nordic Symposium on Building Physics
SubtitleBuilding physics as a key player for sustainable built environment
Abbreviated titleNSB 2023
Conference number13
Duration12 - 14 June 2023
Website
Degree of recognitionInternational event
LocationCreate Aalborg University
CityAalborg
CountryDenmark

External IDs

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

Keywords

Subject groups, research areas, subject areas according to Destatis

ASJC Scopus subject areas

Keywords

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

Library keywords