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Title: Dual-band infrared imaging for concrete bridge deck inspection

Abstract

Dual-band infrared (DBIR) imaging methods and unique image-correction algorithms used successfully for underground and obscured object imaging and detection (of buried mines, archaeological structures, geothermal aquifers and airframe defects) are adapted for inspection of concrete highways and bridge decks to provide early warnings of subsurface defects. To this end, we prepared small concrete test slabs with defects (embedded plastic layers). We used selective DBIR (3--5 {mu}m and 8--12 {mu}m) image ratios to depict the defect sites and remove the effects of surface clutter. We distinguish true temperature-difference signals (at surrogate delamination sites) from emissivity noise (at sites with oil stains, sand, gravel, metal parts and roughness differences) towards improved concrete bridge deck inspections.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10126142
Report Number(s):
UCRL-JC-115704; CONF-940241-2
ON: DE94007126
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Structural materials technology - non-destructive technology conference,Atlantic City, NJ (United States),23-25 Feb 1994; Other Information: PBD: Feb 1994
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; BRIDGES; INSPECTION; INFRARED THERMOGRAPHY; NONDESTRUCTIVE TESTING; ROADS; CONCRETES; DEFECTS; IMAGE PROCESSING; ALGORITHMS; 420500; 320203; MATERIALS TESTING; LAND AND ROADWAY

Citation Formats

Durbin, P, and Del Grande, N. Dual-band infrared imaging for concrete bridge deck inspection. United States: N. p., 1994. Web.
Durbin, P, & Del Grande, N. Dual-band infrared imaging for concrete bridge deck inspection. United States.
Durbin, P, and Del Grande, N. Tue . "Dual-band infrared imaging for concrete bridge deck inspection". United States. https://www.osti.gov/servlets/purl/10126142.
@article{osti_10126142,
title = {Dual-band infrared imaging for concrete bridge deck inspection},
author = {Durbin, P and Del Grande, N},
abstractNote = {Dual-band infrared (DBIR) imaging methods and unique image-correction algorithms used successfully for underground and obscured object imaging and detection (of buried mines, archaeological structures, geothermal aquifers and airframe defects) are adapted for inspection of concrete highways and bridge decks to provide early warnings of subsurface defects. To this end, we prepared small concrete test slabs with defects (embedded plastic layers). We used selective DBIR (3--5 {mu}m and 8--12 {mu}m) image ratios to depict the defect sites and remove the effects of surface clutter. We distinguish true temperature-difference signals (at surrogate delamination sites) from emissivity noise (at sites with oil stains, sand, gravel, metal parts and roughness differences) towards improved concrete bridge deck inspections.},
doi = {},
url = {https://www.osti.gov/biblio/10126142}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {2}
}

Conference:
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