The HT225 Concrete Test Hammer is designed specifically for the non-destructive testing of concrete structures. This method has considerable advantages over conventional methods of assessing the compressive strength of concrete in that large areas can be tested in a very short time at a very low cost.
The HT225 is comparable with the Schmidt Hammer, Type N, this method of testing is covered by EN 12 504-2, ASTM C 805, DIN 1048 and BS1881 part 202. These standards refer to assessment of the rebound hardness of concrete which is directly related to the compressive strengths of the material being tested.
In order to make sure test hammer in good status, we should calibrate it regularly. Hardness of steel core: 60÷2 HRC The rebound value fall in the range of 802 (for test hammer with impact energy of 0.735J and 0.196J, it’s calibrated value should be 74+2)
Model: HT-225Q
Measuring ranges: 10-70MPa
Impact energy: 2.207÷0.1J ( 0.225Kgf.m)
Length of spring stretch: 75+0.3mm
The static friction of pointer slider: 0.65N$0.15N
Radius of spherical tip: 25mm+1mm
The average rebound values on steel anvil: 80+2
Housing dimensions: Ф54 Х 280mm
Weight: =1kg
Model: HT-225Q
Measuring ranges: 10-70MPa
Impact energy: 2.207÷0.1J ( 0.225Kgf.m)
Length of spring stretch: 75+0.3mm
The static friction of pointer slider: 0.65N$0.15N
Radius of spherical tip: 25mm+1mm
The average rebound values on steel anvil: 80+2
Housing dimensions: Ф54 Х 280mm
Weight: =1kg
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