Structural Health Monitoring of Ordinary Portland Cement Concrete Structures Using X-Ray Diffraction

摘要

An experimental study is performed on powder ordinary Portland cement concrete samples using X-ray diffraction (XRD) which reveals a promising approach for structural health monitoring of concrete structures. Conventional X-ray diffractometer was used for XRD analysis of concrete samples. The potential presence of cement content and silica in hardened ordinary Portland cement concrete structures can be determined by X-ray diffraction analysis. This approach may replace the traditional chemical analysis of hardened concrete which is tedious and time consuming but also evaluates compressive strength of ordinary Portland cement concrete structures. Further, an attempt has been made to quantify the phases present in reinforced cement concrete (RCC) structures and compressive strength has been determined. The results of phase quantification and compressive strength obtained from XRD analysis has shown good agreement with the experimental values.