<p></p><h3><ul><li>Industrial Case Studies In NDT - Non Destructive Testing And Evaluation</li></ul></h3><h5><ul><li><b>Conduct a site visit for NDT at Indora Buddha Vihar , Nagpur</b></li><li>Conducted two important tests : The Rbound hammer test and the Ultrasonic Pulse Velocity test</li><li><span style="background-color: initial; font-size: 13px;">Adept at using NDT for preventive maintenance and life-cycle assessment of civil infrastructure.</span>Strong understanding of material behavior, defect detection, and quality assurance through non-invasive methods.</li><li><b><u>Gained hands-on experience in Non-Destructive Testing (NDT) techniques for evaluating the integrity and quality of concrete structures without causing damage. Specialized in:</u></b></li></ul></h5><br><h4><b><u>Rebound Hammer Test :</u></b></h4><b> Purpose:</b> Estimation of surface hardness and compressive strength of concrete.<br>• Specification: Measures rebound number (R-value) of a spring-driven plunger impacting the concrete surface.<br>• Interpretation:<br>• R &gt; 40 → <u>Very good concrete</u><br>• R 30–40 → <u>Good</u><br>• R 20–30 →<u> Fair</u><br>• R &lt; 20 →<u> Poor</u><br><b> Plunger Diameter</b>:<u><b> Approximately 18 mm</b></u><br>• Impact Energy:<br>• Type N (standard): <b>~2.207 Nm</b><br>• Type L (lightweight): <b>~0.735 Nm</b><br>• Type M (heavy-duty)<b>: ~29.43 Nm</b><br><h4><b>• IS Code Reference: IS 13311 (Part 2): 1992</b></h4><h4><b><br></b></h4><h4><b><u>• Ultrasonic Pulse Velocity (UPV) Test</u></b></h4><b>• Purpose:</b> Assessment of concrete uniformity, detection of cracks, voids, and internal flaws.<br><b>• Specification: </b>Measures the time taken by ultrasonic pulses to travel through concrete.<br>• Interpretation:<br>•<b> Velocity &gt; 4.5 km/s → Excellent quality</b><br>• 3.5–4.5 km/s →<u> Good</u><br>• 3.0–3.5 km/s → <u>Medium</u><br>• &lt; 3.0 km/s → <u>Poor</u><br><h4>•<b> IS Code Reference: IS 13311 (Part 1): 1992</b></h4><b>Applications:</b><br>Used these methods for structural health monitoring, quality assurance in construction, and comparative analysis of concrete elements in existing structures.<br><p></p>