Search results
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.
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.”
The rebound hammer test is not intended as a substitute for standard compression test, but as a method for determining the uniformity of concrete in the structure and comparing one concrete with another.
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.
Scope 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.
1.1 This test method covers the determination of a rebound number of hardened concrete using a spring-driven steel hammer. r inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; th. refore, each system shall be used independently of the other. Combining values from th.
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.
