Concrete Testing 

The rationale behind conducting quality tests on concrete can serve several key objectives, including:

• Detecting any potential variations in the quality of the supplied concrete concerning a specific specification.

• Determining whether the concrete has reached the required strength for crucial activities such as stripping, stressing, de-propping, or opening to traffic.

• Ensuring that the concrete has acquired adequate strength suitable for its intended purpose.


At Skill Stone Limited, we provide comprehensive concrete testing services, including adhesion testing. Our services come with detailed survey reports and certifications.

Schmidt Hammer Test

The Schmidt Hammer Test, commonly referred to as the Swiss hammer test, is a widely recognized method used to assess the elastic properties and strength of concrete, primarily focusing on surface hardness and penetration resistance.

This device functions by measuring the rebound of a spring-loaded mass that impacts the surface of the concrete sample. The rebound value, when compared against the provided conversion chart, allows for the determination of the concrete’s compressive strength.

During the test, it is essential to hold the hammer perpendicular to the flat and smooth surface being examined. The rebound reading may be influenced by the hammer’s orientation. For instance, when used vertically (such as under a suspended slab), gravity can increase the rebound distance of the mass, while the opposite effect may occur during a test on a floor slab. The Schmidt hammer utilizes an arbitrary scale ranging from 10 to 100.