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3.2: The simple principle of Impact Echo measurement. A hammer is used... | Download Scientific Diagram
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Impact Echo Scanning Technology for Internal Grout Condition Evaluation in Post-Tensioned Bridge Ducts
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a) Schematic of impact-echo method, (b) amplitude spectrum for test of... | Download Scientific Diagram
5: The impact-echo method: mechanical impact is used to generate stress... | Download Scientific Diagram
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