• Industrial Case Studies In NDT - Non Destructive Testing And Evaluation
• <b>Conduct a site visit for NDT at Indora Buddha Vihar , Nagpur</b>
• Conducted two important tests : The Rbound hammer test and the Ultrasonic Pulse Velocity test
• Adept at using NDT for preventive maintenance and life-cycle assessment of civil infrastructure.Strong understanding of material behavior, defect detection, and quality assurance through non-invasive methods.
• <b>Gained hands-on experience in Non-Destructive Testing (NDT) techniques for evaluating the integrity and quality of concrete structures without causing damage. Specialized in:</b>
• <b>Rebound Hammer Test :</b><b> Purpose:</b> Estimation of surface hardness and compressive strength of concrete.
• Specification: Measures rebound number (R-value) of a spring-driven plunger impacting the concrete surface.
• Interpretation:
• R > 40 → Very good concrete
• R 30–40 → Good
• R 20–30 → Fair
• R < 20 → Poor
• <b> Plunger Diameter</b>:<b> Approximately 18 mm</b>
• Impact Energy:
• Type N (standard): <b>~2.207 Nm</b>
• Type L (lightweight): <b>~0.735 Nm</b>
• Type M (heavy-duty)<b>: ~29.43 Nm</b>
• <b>• IS Code Reference: IS 13311 (Part 2): 1992</b><b>
• </b><b>• Ultrasonic Pulse Velocity (UPV) Test</b><b>• Purpose:</b> Assessment of concrete uniformity, detection of cracks, voids, and internal flaws.
• <b>• Specification: </b>Measures the time taken by ultrasonic pulses to travel through concrete.
• Interpretation:
• <b> Velocity > 4.5 km/s → Excellent quality</b>
• 3.5–4.5 km/s → Good
• 3.0–3.5 km/s → Medium
• < 3.0 km/s → Poor
• <b> IS Code Reference: IS 13311 (Part 1): 1992</b><b>Applications:</b>
• Used these methods for structural health monitoring, quality assurance in construction, and comparative analysis of concrete elements in existing structures.