Rebound Hammer test
The Rebound Hammer Test, also known as the Schmidt Hammer test, is a non-destructive method used for assessing the compressive strength of concrete. It provides a quick and simple measure of the surface hardness of concrete and is often used in quality control and assessment of concrete structures. Here’s how the test generally works:
Rebound Hammer: A handheld device with a spring-loaded mass and a mechanism for measuring the rebound distance.
Rebound Hammer: A handheld device with a spring-loaded mass and a mechanism for measuring the rebound distance.
Preparation:
- Ensure that the concrete surface is clean and free from loose particles.
- If necessary, grind or smooth the surface to provide a uniform and flat testing area.
Calibration:
- Before conducting tests on concrete, the rebound hammer should be calibrated using a calibration anvil provided by the manufacturer.
Testing:
- Hold the rebound hammer perpendicular to the concrete surface being tested.
- Apply the hammer to the concrete surface, and with a single, sharp blow, the spring-loaded mass impacts the concrete.
