Non-Destructive Testing for Buildings in Chennai

NDT is a group of testing methods that assess the structural health of a building without damaging it. Unlike destructive testing (which requires breaking samples), NDT uses sound waves, magnetic fields, and electrochemical measurements to evaluate concrete quality and rebar condition from the surface.

No — that's precisely what makes it non-destructive. Methods like rebound hammer and UPV leave no visible marks. The only exception is core extraction, which removes a small cylindrical sample (60–100mm diameter), leaving a minor hole that is patched after testing.

Each method has a defined accuracy range. UPV is accurate to ±5% for concrete quality. Rebound hammer is accurate to ±15–20% (it's a relative method, best used for uniformity checks). Core test compressive strength is the most accurate (laboratory-grade) with ±5% precision.

Yes. All our NDT tests follow Bureau of Indian Standards (BIS) codes — IS 13311 Part 1 (UPV), IS 13311 Part 2 (Rebound Hammer), IS 516 (Core Test). Reports issued comply with IS 456 structural assessment requirements.

A Basic package (Rebound + UPV) takes 2–4 hours on site. Standard package takes 4–6 hours. Core extraction requires lab curing (28 days for full strength, 7-day fast test option available). Reports are issued within 5–7 working days after site visit.

Basic NDT (Rebound Hammer + UPV) starts at ₹8,000 for a standard residential building. Comprehensive packages with core extraction and half-cell potential testing range from ₹30,000 to ₹50,000 depending on the number of test locations and building size.