Experimental study of micro-cracks in laboratory and in situ using infrared thermography

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Eva Barreira (Author) FEUP; Sara Freitas (Author) FEUP; Vasco Peixoto de Freitas (Author) FEUP; J. M. P. Q. Delgado (Author) FEUP

Conference proceedings International

Title: Defect and Diffusion Forum

Pages: 17-22

9th International Conference on Diffusion in Solids and Liquids Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2013

Madrid, 24 June 2013 through 28 June 2013

Indexing

Scopus - 0 Citations

INSPEC

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-009-MBJ

DOI: 10.4028/www.scientific.net/ddf.353.17

Abstract (EN): Non-destructive techniques are essential to detect common pathologies and analyse the building behaviour. Infrared thermography is a testing technology that has been applied to buildings diagnosis for some decades. However, there are still some applications which are not yet completely explored like the detection of micro-cracks on façade coating materials. In this paper we present a brief introduction of the fundamentals of infrared thermography as well as the results of wetting and drying processes of wall coating samples with micro-cracks carried out in laboratory with very closely controlled climatic conditions. The results of an in situ campaign to evaluate this pathology in two distinguished façades are also presented. This study reflects on the limitations of the application of infrared thermography to access micro-cracks and clearly demonstrates the difficulty on controlling measurements in field conditions due to the wide range of parameters that may affect the thermograms. © (2014) Trans Tech Publications, Switzerland.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6