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Rebound Hammer test is a Non-destructive testing method of concrete which provide a convenient and rapid indication of the compressive strength of the concrete. The rebound hammer is also called as Schmidt hammer that consist of a spring controlled mass that slides on a plunger within a tubular housing.
Learn how to perform a rebound hammer test on concrete, a non-destructive method to measure its compressive strength and uniformity. Find out the correlation between rebound number and compressive strength, and how to calculate the result using a graph and a formula.
Learn how to use a rebound hammer to test the compressive strength, uniformity, and quality of concrete. See the result calculation, graph, and factors affecting the test.
Jun 21, 2024 · The Rebound Hammer Test is a non-destructive method for assessing the strength and surface hardness of concrete. It involves complex principles, mechanics, calibration steps & safety considerations to obtain reliable results. Advantages include cost effectiveness and efficiency. Accuracy can be limited by moisture content and surface condition.
Sep 14, 2023 · The Rebound Hammer Test, commonly referred to as the Schmidt Hammer Test, is a method employed to assess the hardness and compressive strength of materials, with a particular emphasis on concrete. This technique operates on fundamental principles of physics, which include: Impact and Rebound.
What is the Rebound Hammer Test? A straightforward analysis of test hammer data allows quick, cost-effective, and informed decisions on structural suitability. A broad assessment of a structure with a test hammer is a cost-effective way to decide if a more in-depth testing program is needed.
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.”
