·ZC3-A concrete test hammer is applied to test the compressive strength of building concrete components, bridge and so on.
Standard: JGJ/T23-2011; GB /T9138-1988; JJG817-93; ASTM C 805; BS 1881:202; NF P18-417; DIN 1048; UNI 9189
Item | Concrete Rebound Hammer |
Standard Impact Energy | 2.207±0.1J (0.225Kgf.m) |
The static friction of pointer slider | 0.65N±0.15N |
Length of spring stretch | 75±0.3mm |
The average rebound values on steel anvil | 80±2 |
Measuring Range | 10~60Mpa |
Radius of spherical tip | 25mm±1mm |
Working Temperature | -10℃~+50℃ |
Working Humidity | ≤90%RH |