Concrete Interface Shear Vibration Spectroscopy

Abstract

This paper describes the exploratory development of a nondestructive testing (NDT) method for the assessment of dynamic interface shear transfer in concrete based on a frequency analysis. This study focuses on experimental observations of relationships between shear transfer across a concrete interface and the corresponding variations in the response frequencies. The analysis of the data recorded during the tests is performed both in the time and in the frequency domains, and a correlation between these results is presented. The results demonstrate a clear relationship between dynamic interface shear transfer and certain response frequencies. It is concluded that this approach may serve as a basis for an innovative testing approach for assessing interface shear in concrete systems.