How a compression test is performed

At Servosis, we have all the necessary material to perform an optimal compression test.

Another of the tests that you will need in order to perform a successful quality control is the compression test. This test determines the resistance of a material to compressive stress or load. Although it is less used than, for example, the tensile test, this practice is commonly used in concrete or cement and even to assess the endurance of finished parts.

The process consists of introducing a cylindrical specimen of the material to be tested in special presses. Once there, the cylinder is pressurized according to a pre-established regime until it breaks, and all the necessary data are recorded on the press gauges. During the process, the stress curve is also obtained, from which we obtain the three main characteristic points:

  • The stress limit, the point at which the material enters a state of creep, unrecoverable deformation of the specimen.

  • The single strength limit or breaking limit, which represents the maximum stress reached by a material before breaking.

  • The breaking point, which indicates the exact stress at which the material breaks.

    From two of the above three data, the compressive strength limit can be calculated using the following formula:

бc= Pc / So (kg/cm²)

бc: Single resistance limit

                                                                             Pc: Breaking point in kg

So: Cross-sectional area of the specimen in cm².

In Servosis, we have all the necessary equipment to perform both compression tests and other types of tests, you just have to take a look at our catalog. Every day, we strive to offer the best service and we will be pleased to receive all your suggestions or doubts that may arise, contact us!