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A platform for research: civil engineering, architecture and urbanism
Assessing Moisture Content Using Infrared Thermography
Preliminary Results
https://orcid.org/http://orcid.org/0000-0003-3650-7818
https://orcid.org/http://orcid.org/0000-0002-1343-5578
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-9846-6081
Moisture is one of the main causes of defects in buildings, compromising not only the durability of materials and components, but also the indoor comfort and health conditions of users. Infrared thermography (IRT) is a technique that has great potential for mapping humidity in buildings but quantitative criteria that correlate differences in surface temperatures with the moisture content are lacking. This paper presents the results of laboratory tests carried out using IRT and the gravimetric method to assess the correlation between the temperature gradient between the dry zone and the wet zone of mortar specimens and their respective moisture content, considering three conditions/scenarios of air temperature and relative humidity: (i) 20 ºC and 70%, (i) 25 ºC and 60%, (iii) 15 ºC and 80%. The results show that there is a relation between the two values for the three tested scenarios. It was also found that the order of magnitude of the temperature gradient that corresponds to higher values of moisture content is different for the different scenarios analysed.
Assessing Moisture Content Using Infrared Thermography
Preliminary Results
https://orcid.org/http://orcid.org/0000-0003-3650-7818
https://orcid.org/http://orcid.org/0000-0002-1343-5578
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-9846-6081
Moisture is one of the main causes of defects in buildings, compromising not only the durability of materials and components, but also the indoor comfort and health conditions of users. Infrared thermography (IRT) is a technique that has great potential for mapping humidity in buildings but quantitative criteria that correlate differences in surface temperatures with the moisture content are lacking. This paper presents the results of laboratory tests carried out using IRT and the gravimetric method to assess the correlation between the temperature gradient between the dry zone and the wet zone of mortar specimens and their respective moisture content, considering three conditions/scenarios of air temperature and relative humidity: (i) 20 ºC and 70%, (i) 25 ºC and 60%, (iii) 15 ºC and 80%. The results show that there is a relation between the two values for the three tested scenarios. It was also found that the order of magnitude of the temperature gradient that corresponds to higher values of moisture content is different for the different scenarios analysed.
Assessing Moisture Content Using Infrared Thermography
Preliminary Results
https://orcid.org/http://orcid.org/0000-0003-3650-7818
https://orcid.org/http://orcid.org/0000-0002-1343-5578
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-9846-6081
Moisture is one of the main causes of defects in buildings, compromising not only the durability of materials and components, but also the indoor comfort and health conditions of users. Infrared thermography (IRT) is a technique that has great potential for mapping humidity in buildings but quantitative criteria that correlate differences in surface temperatures with the moisture content are lacking. This paper presents the results of laboratory tests carried out using IRT and the gravimetric method to assess the correlation between the temperature gradient between the dry zone and the wet zone of mortar specimens and their respective moisture content, considering three conditions/scenarios of air temperature and relative humidity: (i) 20 ºC and 70%, (i) 25 ºC and 60%, (iii) 15 ºC and 80%. The results show that there is a relation between the two values for the three tested scenarios. It was also found that the order of magnitude of the temperature gradient that corresponds to higher values of moisture content is different for the different scenarios analysed.
Assessing Moisture Content Using Infrared Thermography
Preliminary Results
Lecture Notes in Civil Engineering
Berardi, Umberto (editor) / Dafico, Letícia (author) / Barreira, Eva (author) / Neves, Diana (author) / Vicente, Romeu (author) / Almeida, Ricardo M. S. F. (author)
International Association of Building Physics ; 2024 ; Toronto, ON, Canada
2024-12-06
7 pages
Article/Chapter (Book)
Electronic Resource
English
Infrared thermography for assessing moisture related phenomena in building components
| British Library Online Contents | 2016
Infrared thermography for assessing moisture related phenomena in building components
| Online Contents | 2016
Infrared thermography for assessing moisture related phenomena in building components
| British Library Online Contents | 2016