In-situ assessment of physical performance and degradation analysis of rendering walls. (30th January 2015)

• Record Type: Journal Article
• Authors: Menezes, A.; Glória Gomes, M.; Flores-Colen, I.
• Is Part Of: Construction & building materials. Volume 75(2015)
• Page Start: 283
• Page End: 292
• Publication Date: 2015-01-30
• Subjects: Infrared thermography -- Karsten tubes -- Moisture meter -- Physical performance -- Visual inspection -- In-situ testing; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2014.11.039
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: In-situ techniques for physical performance rendering walls assessment. Inspection methodology proposal with non-destructive diagnosis techniques. Visual inspection with infrared thermography, Karsten tubes and moisture meter. Three experimental campaigns on cement and lime based renders. Abstract: The use of in-situ diagnostic techniques can lead to a more accurate evaluation of the performance level of façade claddings. The paper aims to evaluate the advantages of using visual inspection and selected in-situ techniques (infrared thermography, Karsten tubes and moisture meter) for the evaluation of the physical performance of renders and their state of deterioration. The main objective of the study is to propose a methodology for in-situ inspections with a low degree of intrusion for the evaluation of physical in-service performance of renders applied on external walls. Three experimental campaigns were performed and different types of renders were analyzed for several in-service conditions. This work enabled the identification of the various factors that affect the results of the selected in-situ techniques. Furthermore, it was made evident, that there are advantages in the cross-comparison of different results, which in certain situations can complement the visual inspection.