Rebound Concrete Works Hammer Machine

How to Use a Rebound Hammer: 1.Prepare the Surface: Choose a smooth, clean, and dry area of concrete. Remove loose particles, dust, or coatings that could affect results. 2. Hold the Hammer Properly: Position the rebound hammer firmly against the concrete surface, keeping it perpendicular to the test area. 3. Press the Plunger: Push the hammer slowly until the spring-loaded plunger releases and strikes the concrete. 4. Read the Rebound Value: Note the rebound number shown on the scale. This value indicates surface hardness. 5. Repeat the Test: Take at least 10 readings in the same area and discard unusually high or low values. Calculate the average. 6. Interpret Results: Compare the average rebound number to the manufacturer’s conversion chart to estimate concrete compressive strength.