Engineering and Science in Structural Forensic Work

A methodology for the systematic study of the condition of concrete in structures is presented in this paper. Historical review of the site and the environment, condition surveys and tests of engineering properties of the concrete are complemented by examination of the concrete using the stereomicroscope, optical microscope, electron microscope, analysis by wet chemistry, thermal analysis, and X-ray diffraction. The step-by-step progression from large scale to submicroscopic scale allows for the selection of specimens that appropriately represent the concrete, gives context to the detailed test methods and ensures reliable interpretation of the results. The authors believe that the methodology employed will be of value to investigators.