Identifying voids in plastic ducts in post-tensioning prestressed concrete members by resonant frequency of impact–echo, SIBIE and tomography
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Masayasu Ohtsu | Michael Forde | F. Kunisue | R. Muldoon | A. Chalker | M. Ohtsu | M. Forde | R. Muldoon | A. Chalker | F. Kunisue
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