IRT versus moisture: Laboratory tests

• Type: Chapter or Part of a Book
• Date: 2019

Authors

Eva Barreira (Author) FEUP; Ricardo M. S. F. Almeida (Author) Other

Book

Title: Infrared Thermography for Building Moisture Inspection

1º Edition

Pages: 29-42

ISBN: 9783319753850

Electronic ISBN: 9783319753867

Publisher: Springer Publishing

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00P-PRH

DOI: 10.1007/978-3-319-75386-7_3

Abstract (EN): The applicability of IRT to assess moisture was evaluated in the laboratory using full-scale models. Two situations were evaluated: moisture intake due to rising damp and the drying process of a moist surface. In both cases, the passive approach was implemented as no external heat source was used. Moist areas were detected due to the effect of evaporative cooling at the surface. A wall made of limestone blocks was selected as a case study to assess rising damp. The specimen was partially immersed in water for about 3 weeks, and thermal images were taken before and during the absorption period. To assess the drying process of a moist surface, a typical brick wall covered with painted rendering was sprayed with water on a limited area and thermal images were taken during the drying period, which lasted about 10 days. For the two phenomena, besides thermal images, a moisture detector was also used to qualitatively evaluate the moisture content of the walls. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2019.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14