Concrete hardness and strength test are performed using non destructive method such as Schmidz hammer or laboratory based destructive test. 

The Schmidt rebound hammer is a surface hardness tester. The Schmidt hammer works on the principle of rebound due to elastic effect. There are several other equivalent instruments available in the industry to perform this test.

Schmidt hammer

 

 LMATS offers concrete hardness ans strength test services from its Melbourne and Sydney laboratories.