Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography

Sin Yau Chiu; Wai Lok Lai; Fung Chu Janet Sham; Miranda Lui

doi:10.21611/qirt.2019.005

Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography

Sin Yau Chiu, Wai Lok Lai, Fung Chu Janet Sham, Miranda Lui

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research

Abstract

This paper validates the use of passive infrared thermography in size estimation of delaminations in external wall with various finishing materials and the influence of the cover depth of delaminations. Thermograms of a reinforced concrete wall surface with embedded delaminations in different depths were collected in 10-hr diurnal experiments and processed in an in-house program with a modified gradient algorithm. This paper reports the accuracy of the proposed size estimation method and how cover depth could affect the observed signals of delamination in thermograms in reflecting its actual size.

Original language	English
Pages	61-62
DOIs	https://doi.org/10.21611/qirt.2019.005
Publication status	Published - Jul 2019
Event	The 3rd QRIT Conference Asia - Tokyo, Japan Duration: 1 Jul 2019 → 2 Jul 2019

Conference

Conference	The 3rd QRIT Conference Asia
Country/Territory	Japan
City	Tokyo
Period	1/07/19 → 2/07/19

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10.21611/qirt.2019.005

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title = "Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography",

abstract = "This paper validates the use of passive infrared thermography in size estimation of delaminations in external wall with various finishing materials and the influence of the cover depth of delaminations. Thermograms of a reinforced concrete wall surface with embedded delaminations in different depths were collected in 10-hr diurnal experiments and processed in an in-house program with a modified gradient algorithm. This paper reports the accuracy of the proposed size estimation method and how cover depth could affect the observed signals of delamination in thermograms in reflecting its actual size.",

author = "Chiu, {Sin Yau} and Lai, {Wai Lok} and Sham, {Fung Chu Janet} and Miranda Lui",

year = "2019",

month = jul,

doi = "10.21611/qirt.2019.005",

language = "English",

pages = "61--62",

note = "The 3rd QRIT Conference Asia ; Conference date: 01-07-2019 Through 02-07-2019",

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Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography. / Chiu, Sin Yau; Lai, Wai Lok; Sham, Fung Chu Janet et al.
2019. 61-62 Paper presented at The 3rd QRIT Conference Asia, Tokyo, Japan.

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research

TY - CONF

T1 - Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography

AU - Chiu, Sin Yau

AU - Lai, Wai Lok

AU - Sham, Fung Chu Janet

AU - Lui, Miranda

PY - 2019/7

Y1 - 2019/7

N2 - This paper validates the use of passive infrared thermography in size estimation of delaminations in external wall with various finishing materials and the influence of the cover depth of delaminations. Thermograms of a reinforced concrete wall surface with embedded delaminations in different depths were collected in 10-hr diurnal experiments and processed in an in-house program with a modified gradient algorithm. This paper reports the accuracy of the proposed size estimation method and how cover depth could affect the observed signals of delamination in thermograms in reflecting its actual size.

AB - This paper validates the use of passive infrared thermography in size estimation of delaminations in external wall with various finishing materials and the influence of the cover depth of delaminations. Thermograms of a reinforced concrete wall surface with embedded delaminations in different depths were collected in 10-hr diurnal experiments and processed in an in-house program with a modified gradient algorithm. This paper reports the accuracy of the proposed size estimation method and how cover depth could affect the observed signals of delamination in thermograms in reflecting its actual size.

U2 - 10.21611/qirt.2019.005

DO - 10.21611/qirt.2019.005

M3 - Conference presentation (not published in journal/proceeding/book)

SP - 61

EP - 62

T2 - The 3rd QRIT Conference Asia

Y2 - 1 July 2019 through 2 July 2019

ER -

Influence of cover depth towards quantitative size estimation of delaminations in external wall using passive infrared thermography

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