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The proper filling confirmation of the cavities in massive concrete structures of nuclear power plants by impact-echo method

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Academic year: 2017

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Fig. 1.  Scheme of the model with drilled holes                to filling by CarboPur WF
Fig. 2.  Time histories of displacement perpendicular to surface for full-concrete                specimen and for reflection from the central empty hole
Fig. 5.  Responses to the excitation in middle of the specimen taken from all nodes on 2 m line                going through the specimen

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