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Learn how to use a rebound hammer to measure the compressive strength of concrete non-destructively. Find out the objectives, principle, procedure, advantages and disadvantages of this method with examples and graphs.
Learn how to conduct a rebound hammer test to assess the compressive strength, uniformity, and quality of concrete. Find out the equipment, result calculation, graph, and factors affecting the test.
Learn how to perform a non-destructive test of concrete compressive strength using a rebound hammer. Find out the objectives, code, calibration, impact energy, correlation, and interpretation of the test results.
How does it work? ASTM C805, “Standard Test Method for Rebound Number of Hardened Concrete”, summarizes the procedure as “A steel hammer impacts, with a predetermined amount of energy, a steel plunger in contact with a surface of concrete, and the distance that the hammer rebounds is measured.”
Jun 21, 2024 · The standard procedure for rebound hammer test, as outlined by ASTM C805, involves impacting a steel plunger in contact with the concrete surface with a steel hammer, and measuring the distance the hammer rebounds.
Rebound hammer test is conducted around all the points of observation on all accessible faces of the structural element. Concrete surfaces are thoroughly cleaned before taking any measurement.
Dec 26, 2023 · Learn how to perform a non-destructive test to assess the compressive strength of concrete using a rebound hammer. Find out the factors influencing the test, the procedure steps, and the quality of concrete corresponding to different rebound numbers.
