Concrete Test Hammer
Useful for non-destructive estimation
of quality of concrete of a finished
structure and its relative compressive
The instrument consists of a casing
in which a hammer mass, special spring,
hammer locking and release mechanism
A spherical ended plunger projects
at one end which, when pressed against
the test surface, actuates the release
mechanism of the hammer mass.
It gives an impact on the plunger.
The hammer mass rebounds after the
impact and an indicator registers
the amount of rebound on a linear
scale. The compressive strength of
the material can be computed from
the calibration diagram supplied with
It gives results within +15% of actual
compressive compressive strength.
Supplied complete with a grinding
stone in a wooden carrying case.