ZC3-A Concrete Rebound Tester

product description:

This instrument is a concrete rebound meter that fully complies with the industry standard JGJ / T23-2011 "Technical Regulations for Testing the Compressive Strength of Concrete by Rebound Method". It is used to detect the compressive strength of radon in the range of 10-60Mpa. The nominal energy of the rebound meter It is 2.207J, and the indication system is a pointer direct-reading medium rebound tester. The technical parameters of the instrument are in accordance with the various technical specifications of the National Metrological Verification Regulation of the People's Republic of China "Concrete Rebound Tester" (JJG817-2011).
Technical Parameters:
● Hand length: 20.0 ± 0.2 (mm)
● Hand friction: 0.65 ± 0.15 (N)
● Spherical radius of the end of the bounce rod: 25 ± 1.0 (mm)
● Rigidity of bounce tension spring: 785.0 ± 30.0 (N / m)
● Unhook position of the bounce hammer: at the scale line "100"
● Working length of bounce tension spring: 61.5.0 ± 0.3 (mm)
● The impact length of the hammer: 75 ± 0.3
● Bouncing position of bounce hammer: "0" on the scale
● Fixed value of steel anvil: 80 ± 2

Performance characteristics:

The concrete rebound tester uses a spring to drive the hammer and the restoration force of the instantaneous elastic deformation generated by hitting the concrete surface by the hammer, so that the hammer will drive the pointer to rebound and indicate the rebound distance. The rebound value (the ratio of the rebound distance to the distance from the hammer to the hammer before impact, calculated as a percentage) is used as one of the indicators related to the compressive strength of concrete to estimate the compressive strength of concrete. It is an instrument for non-destructive testing of the compressive strength of concrete in structures or components.

This instrument is light, flexible, inexpensive, does not require power, the button is not easy to fall using the stretching process, the pointer is easy to adjust the friction, and it is easy to grasp. It is very suitable for on-site construction sites, plus the corresponding rebound gauge verification procedures and rebound method. The formulation and implementation of technical regulations for testing the compressive strength of concrete have ensured its detection accuracy, and have been widely used in China's construction industry.