Reliability Of Nondestructive Techniques Research Articles

Measurement of salinity in building materials: a synopsis of current practices and potential innovations

This article provides an overview of the various techniques used to measure the salt content of building materials. The authors discuss the importance of salinity measurement, as high salinity can lead to degradation and damage in building materials. They then consider the traditional methods of salinity measurement, including conductivity measurement and chemical titration. While reliable, these methods are often time-consuming, destructive and may not provide a complete picture of the salt distribution within the material. The authors then focus on emerging non-destructive techniques that offer the potential for in-situ salinity measurement. These include X-ray Dffraction (XRD), Thermal Analysis and Fourier Transform Infrared Spectroscopy (FTIR). Each method is discussed, with the authors highlighting its advantages, limitations and potential applications. The article concludes with a discussion of the future of salinity measurement in building materials. The authors propose a multimodal approach combining traditional and new methods to achieve more accurate and comprehensive salinity measurements. They also emphasise the need for further research and development in this area, particularly to improve the accuracy and reliability of non-destructive techniques.

Condition assessment of different historic bridges using Non Destructive Techniques (NDT) with FTIR analysis in Izmir after the Samos Island earthquake

The study aimed to contribute to condition assessments of historic bridges in Izmir, Turkey and the estimation of their predictable functional lifetime after the Samos earthquake. This document is a summary of the study into the reliability of Non-Destructive Techniques (NDT) for testing the state of different historic bridges impacted by the October 30, 2020 Earthquake. Besides providing data on material characteristics, NDT can help identify hidden bridge structure defects, such as cavities and moisture. This study also used FTIR (Fourier Transform Infrared Spectroscopy) spectral data analysis in conjunction with NDT as a multidisciplinary evaluation technique and demonstrates the value of this approach in the field. This study is of special relevance to bridge engineers.

Using advanced NDT for historic buildings: Towards an integrated multidisciplinary health assessment strategy

This study aims to enhance the body of knowledge available in relation to the mechanical performance of historical structures and the assessment of the expected service life of such structures. The reliability of non-destructive techniques (NDT) is examined, in particular in connection with the technique's application to a historic Ottoman building located in Urla, Izmir, Turkey. NDT techniques are effective in the identification of such defects as cavities and water ingress hidden within a structure, in addition to providing information on material properties. This research is unique in utilizing NDT within a multidisciplinary assessment strategy to demonstrate its value within the field and will be of particular interest to structural engineers and architects.