Time-Dependent Passive Building Thermography for Detecting Delamination of Adhered Ceramic Cladding

Ecem Edis*, Inês Flores-Colen, Jorge De Brito

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Time-dependent passive infrared thermography (td-PIRT) is an inspection technique that can be used to detect delamination. td-PIRT was used to inspect two buildings in Lisbon (Portugal) with adhered ceramic cladding to evaluate its potential to detect delamination problems in such claddings, which is a common problem and has safety risks. The td-PIRT data were analysed quantitatively by means of simple image subtraction (SIS), nonnegative matrix factorisation (NMF), and principal component analysis (PCA). Comparative evaluations showed that td-PIRT has a great potential to detect delamination problems in adhered ceramic cladding, depending on the analysis method selected. PCA and NMF were found to be efficient methods because of their good, consistent performance in revealing defective areas.

Original languageEnglish
Article number24
JournalJournal of Nondestructive Evaluation
Volume34
Issue number3
DOIs
Publication statusPublished - 30 Aug 2015

Bibliographical note

Publisher Copyright:
© 2015, Springer Science+Business Media New York.

Funding

The authors thank the IST-DECivil Building Construction group and ICIST and ISTAR for allowing the use of equipment. The first author acknowledges the financial support of ITU and TUBITAK for the research visit.

FundersFunder number
TUBITAK
International Technological University

    Keywords

    • Adhered ceramic tile
    • Delamination
    • Nonnegative matrix factorisation
    • Principal component analysis
    • Simple image subtraction
    • Time-dependent passive infrared thermography

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