Simple Durable Concrete Hammer HT-75 Practical With High Precision

Simple Durable Concrete Hammer HT-75 Practical With High Precision Introduction 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