TY - JOUR
T1 - Application of ultrasonic shear-wave tomography to identify horizontal crack or delamination in concrete pavement and bridge
AU - Choi, Pangil
AU - Kim, Dong Ho
AU - Lee, Bong Hak
AU - Won, Moon C.
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/9/15
Y1 - 2016/9/15
N2 - As more concrete structures and pavements in the US are approaching or have already exceeded their design lives, the number of distresses and needed repairs have increased, along with the amount of funding needed. In this study, various concrete distresses in structures and pavements were evaluated with MIRA testing, which is based on the ultrasonic pulse-echo method. The distresses evaluated included horizontal cracking or delamination at the mid-depth of concrete pavement slabs, spalling and map cracking in concrete pavement slabs, mudballs in concrete runway, concrete cracks and delamination in bridge columns, and shallow concrete cover in bridge piers. MIRA was able to detect discontinuities in concrete, whether they are cracks, delamination at an interface of two concrete slabs, mudballs, or reinforcing steel.
AB - As more concrete structures and pavements in the US are approaching or have already exceeded their design lives, the number of distresses and needed repairs have increased, along with the amount of funding needed. In this study, various concrete distresses in structures and pavements were evaluated with MIRA testing, which is based on the ultrasonic pulse-echo method. The distresses evaluated included horizontal cracking or delamination at the mid-depth of concrete pavement slabs, spalling and map cracking in concrete pavement slabs, mudballs in concrete runway, concrete cracks and delamination in bridge columns, and shallow concrete cover in bridge piers. MIRA was able to detect discontinuities in concrete, whether they are cracks, delamination at an interface of two concrete slabs, mudballs, or reinforcing steel.
KW - Concrete bridge
KW - Concrete pavement
KW - Horizontal cracking
KW - Shear-wave tomography
KW - Ultrasonic
UR - http://www.scopus.com/inward/record.url?scp=84976597381&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2016.05.126
DO - 10.1016/j.conbuildmat.2016.05.126
M3 - Article
AN - SCOPUS:84976597381
VL - 121
SP - 81
EP - 91
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
ER -