STRUCTURAL HEALTH MONITORING OF CONCRETE STRUCTURES EVALUATING ELASTIC CONSTANTS AND STRESS-STRAIN PARAMETERS BY X-RAY DIFFRACTION TECHNIQUE

This research paper highlights the applicability of X-ray diffraction method to evaluate the true and effective modulii of concrete ie; Young’s modulus of elasticity, Bulk modulus of elasticity and modulus of Rigidity at different temperatures a long with compressive strength or compressive stress and strain. The aim of this study is to explore the possibilities of structural health monitoring of concrete structures in different temperate regions through X-ray diffraction technique as compared to the normal Non-Destructive methods like Rebound Hammer, Ultrasonic pulse velocity tests or de- structive lab methods used in practice today. This paper consolidates the variation in true and effec-tive modulii along with compressive strength and st rain at very low temperate regions (upto 5 degree Celsius), moderate temperate regions (up to 25 degree Celsius) to high temperate regions (upto 50 degree Celsius).