Complementary impact echo and ground penetrating radar evaluation of bridge decks on I-84 interchange in connecticut

N. Gucunski, F. A. Romero, Parisa Shokouhi, J. Makresias

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Corrosion induced bridge deck delamination is a common problem in reinforced concrete decks. Complementary approach using impact echo (IE) and ground penetrating radar (GPR) testing was conducted on asphalt-overlaid bridge decks on I84 Interchange in Connecticut. In the first phase of testing GPR survey was conducted on nine decks. The decks were GPR surveyed, at 50 km/h, with two objectives. The first one was to estimate concrete deterioration quantities (% of deck area) prior to recommending deck repair or replacement. The second objective was to identify zones of higher deterioration that were later evaluated by IE for possible delamination. A portable seismic pavement analyzer (PSPA) was used for the IE assessment on four bridge deck sections. The results of IE evaluation are presented in terms of condition assessment maps, where zones of different condition grades or different degrees of delamination are identified. The results were correlated to the GPR data to assist in definition of a suitable deterioration threshold separating sound concrete from deteriorated sections within the deck. These two non-destructive evaluation techniques, along with 15 cores and 15 chloride samples from the three decks, were used to finalize the deterioration assessment. For two of the three interstate decks tested, the PSPA testing and analysis was useful in helping establish the GPR deterioration threshold. On the third no obvious correlation could be seen, so the chloride test results were used to help constrain the GPR data.

Original languageEnglish (US)
Pages (from-to)1017-1026
Number of pages10
JournalGeotechnical Special Publication
Issue number130-142
StatePublished - 2005

Fingerprint

ground-penetrating radar
Bridge decks
Interchanges
ground penetrating radar
Radar
Deterioration
deterioration
delamination
Delamination
pavement
Pavements
chlorides
Testing
bitumen
chloride
testing
Concretes
corrosion
asphalt
Asphalt

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Architecture
  • Soil Science

Cite this

@article{58812b0c40db402eaaa2491b90b799db,
title = "Complementary impact echo and ground penetrating radar evaluation of bridge decks on I-84 interchange in connecticut",
abstract = "Corrosion induced bridge deck delamination is a common problem in reinforced concrete decks. Complementary approach using impact echo (IE) and ground penetrating radar (GPR) testing was conducted on asphalt-overlaid bridge decks on I84 Interchange in Connecticut. In the first phase of testing GPR survey was conducted on nine decks. The decks were GPR surveyed, at 50 km/h, with two objectives. The first one was to estimate concrete deterioration quantities ({\%} of deck area) prior to recommending deck repair or replacement. The second objective was to identify zones of higher deterioration that were later evaluated by IE for possible delamination. A portable seismic pavement analyzer (PSPA) was used for the IE assessment on four bridge deck sections. The results of IE evaluation are presented in terms of condition assessment maps, where zones of different condition grades or different degrees of delamination are identified. The results were correlated to the GPR data to assist in definition of a suitable deterioration threshold separating sound concrete from deteriorated sections within the deck. These two non-destructive evaluation techniques, along with 15 cores and 15 chloride samples from the three decks, were used to finalize the deterioration assessment. For two of the three interstate decks tested, the PSPA testing and analysis was useful in helping establish the GPR deterioration threshold. On the third no obvious correlation could be seen, so the chloride test results were used to help constrain the GPR data.",
author = "N. Gucunski and Romero, {F. A.} and Parisa Shokouhi and J. Makresias",
year = "2005",
language = "English (US)",
pages = "1017--1026",
journal = "Geotechnical Special Publication",
issn = "0895-0563",
publisher = "American Society of Civil Engineers (ASCE)",
number = "130-142",

}

Complementary impact echo and ground penetrating radar evaluation of bridge decks on I-84 interchange in connecticut. / Gucunski, N.; Romero, F. A.; Shokouhi, Parisa; Makresias, J.

In: Geotechnical Special Publication, No. 130-142, 2005, p. 1017-1026.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Complementary impact echo and ground penetrating radar evaluation of bridge decks on I-84 interchange in connecticut

AU - Gucunski, N.

AU - Romero, F. A.

AU - Shokouhi, Parisa

AU - Makresias, J.

PY - 2005

Y1 - 2005

N2 - Corrosion induced bridge deck delamination is a common problem in reinforced concrete decks. Complementary approach using impact echo (IE) and ground penetrating radar (GPR) testing was conducted on asphalt-overlaid bridge decks on I84 Interchange in Connecticut. In the first phase of testing GPR survey was conducted on nine decks. The decks were GPR surveyed, at 50 km/h, with two objectives. The first one was to estimate concrete deterioration quantities (% of deck area) prior to recommending deck repair or replacement. The second objective was to identify zones of higher deterioration that were later evaluated by IE for possible delamination. A portable seismic pavement analyzer (PSPA) was used for the IE assessment on four bridge deck sections. The results of IE evaluation are presented in terms of condition assessment maps, where zones of different condition grades or different degrees of delamination are identified. The results were correlated to the GPR data to assist in definition of a suitable deterioration threshold separating sound concrete from deteriorated sections within the deck. These two non-destructive evaluation techniques, along with 15 cores and 15 chloride samples from the three decks, were used to finalize the deterioration assessment. For two of the three interstate decks tested, the PSPA testing and analysis was useful in helping establish the GPR deterioration threshold. On the third no obvious correlation could be seen, so the chloride test results were used to help constrain the GPR data.

AB - Corrosion induced bridge deck delamination is a common problem in reinforced concrete decks. Complementary approach using impact echo (IE) and ground penetrating radar (GPR) testing was conducted on asphalt-overlaid bridge decks on I84 Interchange in Connecticut. In the first phase of testing GPR survey was conducted on nine decks. The decks were GPR surveyed, at 50 km/h, with two objectives. The first one was to estimate concrete deterioration quantities (% of deck area) prior to recommending deck repair or replacement. The second objective was to identify zones of higher deterioration that were later evaluated by IE for possible delamination. A portable seismic pavement analyzer (PSPA) was used for the IE assessment on four bridge deck sections. The results of IE evaluation are presented in terms of condition assessment maps, where zones of different condition grades or different degrees of delamination are identified. The results were correlated to the GPR data to assist in definition of a suitable deterioration threshold separating sound concrete from deteriorated sections within the deck. These two non-destructive evaluation techniques, along with 15 cores and 15 chloride samples from the three decks, were used to finalize the deterioration assessment. For two of the three interstate decks tested, the PSPA testing and analysis was useful in helping establish the GPR deterioration threshold. On the third no obvious correlation could be seen, so the chloride test results were used to help constrain the GPR data.

UR - http://www.scopus.com/inward/record.url?scp=17044411270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17044411270&partnerID=8YFLogxK

M3 - Article

SP - 1017

EP - 1026

JO - Geotechnical Special Publication

JF - Geotechnical Special Publication

SN - 0895-0563

IS - 130-142

ER -