When testing the strength of concrete, the concrete test hammer uses a certain elastic force to transit the impact force of an impact hammer to the surface of concrete, its initial
kinetic energy redistributes, a part of energy in the form of
plastic deformation or residual deformation is adsorbed by
the concrete, and another part of energy which is proportional
to the surface hardness is transmitted to the impact hammer,
making the hammer resile to a certain height, then the strength
of the concrete is derived from the proportional relation between the height of resilience and the concrete strength.
With the merits of simple structure, easy correction, maintenance and repair, and portability, the concrete
test hammer is widely used in civil engineering and construction industry for testing the strength of concrete.
Compared to other nondestructive testers, the concrete test
hammer is an economical and practical nondestructive testing
instrument.
HT-225A is used for testing the strength of various concrete
members (slab, beam, column, truss) of normal building
strength and bridge.
HT-75 is used for testing small and impact-sensitive parts of
concrete or artificial brick.
HT-20 is used for testing mortar or clay of products.
S pecifications