Evaluation of nature and intensity of fire concrete spalling by frequency analysis of sound records
Authors:
- Katarzyna Mróz,
- Izabela Hager
Abstract
The paper presents a new method for identifying the form and intensity of spalling using an analysis of the acoustic signal emitted by concrete. To assess the intensity and monitor the course of concrete spalling during fire exposure, the analysis of the recorded sound from the furnace chamber is used. The spalling intensity was determined based on signal amplitude analysis. Investigation of sound records showed that the character of spalling can be categorized by a well-defined frequency value. Based on the analysis of the Fast Fourier Transform (FFT) spectrum, the authors have distinguished the following phenomena that are the source of the signal by assigning the corresponding frequency of the sound wave vibration: explosive spalling, aggregate spalling and destructive spalling.
- Record ID
- CUT1397cbdd64fd4987af4ad1668d915b4e
- Publication categories
- ;
- Author
- Journal series
- Cement and Concrete Research, ISSN 0008-8846, e-ISSN 1873-3948
- Issue year
- 2021
- Vol
- 148
- Pages
- [1-11]
- Article number
- 106539
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 11; Bibliografia (liczba pozycji) - 31; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 148
- Keywords in English
- concrete, fire spalling, frequency analysis, sound, spalling forms
- DOI
- DOI:10.1016/j.cemconres.2021.106539 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0008884621001885 Opening in a new tab
- Related project
- Wpływ krępowania odkształceń termicznych na charakterystykę odpryskiwania betonu w pożarze. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Ocena ryzyka odpryskiwania betonu w pożarze. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN]
- Wpływ krępowania odkształceń termicznych na charakterystykę odpryskiwania betonu w pożarze. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 200
- Publication indicators
- = 4
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT1397cbdd64fd4987af4ad1668d915b4e/
- URN
urn:pkr-prod:CUT1397cbdd64fd4987af4ad1668d915b4e
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.