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Feb 14, 2019 · 1.1 This test method covers the determination of a rebound number of hardened concrete using a spring-driven steel hammer. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of ...
May 10, 2022 · Objectives of the Rebound Hammer Test: A rebound hammer test on concrete is an appropriate strategy to specify concrete’s compressive potency. It is commonly beneficial to test concrete beams and cores, which are also used to assess the quality of concrete. The test is carried out by striking the concrete with a hammer and measuring the ...
Rebound Hammers. Schmidt hammers, or concrete test hammers, are used to determine in-place strength of concrete. All of the concrete rebound hammers we carry below accurately measure compressive strength of concrete, which directly determines the load-bearing capacity and durability of concrete structures. All models also include a grinding ...
Jan 4, 2021 · Step 3 : Testing. Hold the Rebound Hammer at right angles to the test surface with the plunger pin pointing towards the test location.°. Push the plunger against the concrete, and force the cylinder body towards the concrete. The force causes the latch to release and make an impact on the concrete. Essentially the rebound of the spring driven ...
Dec 31, 2010 · 1.1 This test method covers the determination of a rebound number of hardened concrete using a spring-driven steel hammer. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this ...
3.1 Rebound (Schmidt) hammer test method. The rebound hammer is an inexpensive and quick method for nondestructive testing of concrete. The method should not be regarded as a substitute for core compressive testing but rather as a method for determining the uniformity of concrete in the structures and helping reduce the number of core samples.
The objectives of rebound hammer test are as follows:-. 1. To find out the compressive strength of concrete with suitable correlations between the compressive strength and rebound index. 2. To evaluate the uniformity of concrete. 3. To evaluate the quality of concrete on the basis of standard requirements. 4.
