Assessing Moisture Content Using Infrared Thermography: Preliminary Results

• Type: Article in International Conference Proceedings Book
• Date: 2025

Authors

Dafico, L (Author) Other; Eva Barreira (Author) FEUP; Neves, D (Author) Other; Vicente, R (Author) Other; Almeida, MSF (Author) Other

Conference proceedings International

Title: Lecture Notes in Civil Engineering

Pages: 372-378

9th International Building Physics Conference, IBPC 2024

Toronto, 25 July 2024 through 27 July 2024

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-017-K1Q

DOI: 10.1007/978-981-97-8313-7_51

Abstract (EN): 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. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6