A Guide to Rock Testing Equipment

Rocks are important topographical components on Earth. With the advent of civilizations, the rock has become one of the inseparable constituents in building construction. People started using rocks in constructing buildings and other structures. There are several types of rocks, and each type has a specific purpose and function. To test the tenacity of the rocks, there are different types of rock testing equipment.

What is the Main Function of Rock Testing Equipment?

The rock testing equipment is generally portable and is carried to specific sites to test the quality of rocks in a particular region. The equipment can either be carried directly to the drilling site, and the samples can be tested in the laboratory.

The equipment that tests the rock quality from the rock specimen is the rock testing lab equipment. The rocks in a particular region are subjected to stress under various conditions. Calculations on tenacity depending on the measured stress and strain on the rock pieces. The linear or non-linear relationship between the stress conditions produced. The strain on the rocks is required to break them into smaller pieces. This will give the tenacity of the rocks. This calculation will depict the behaviour and quality of the rocks. It will also determine if the rocks are to be used in building construction or other purposes.

Mechanism of Action:

Different types of equipment are used to test the rocks in the laboratory. However, before going into the detailed mechanism of the lab rock testing, you should know each type of instrument and its uses. The tolerance level of the rocks is measured in stress. This stress condition is influenced by uniaxial tension and compression. The behaviour of rocks and their strength is calculated in this method.

What is a Uniaxial Compression Test?

This test is a simple yet important test for measuring the strength and behaviour of the rocks. This is a form of compression test that is executed in combination with the tension test procedure. This test is a useful one as it produces a large strain. This test does not affect the original specimen. This test is used to see the asymmetry in the rock specimen under situations of tension and compression. This test is also useful for drawing a line of difference between the asymmetry produced by both tension and compression.

The uniaxial compression test is helpful for rocks that are soft and brittle in nature. The uniaxial method of a compression test is used to measure the compressive strength. It is calculated based on the maximum load capacity of the rocks and the area of cross-section.

How to Perform this Test?

This test comprises of some steps. The first step deals with the sample preparation by rock cutting machines. This machine cut the specimen rock into small pieces to measure its uniaxial compressive strength.

Next, there is a portable core drilling machine, and it prepares the core specimen for lab testing. After the core drilling, the sample pieces are finished to give the final dimensions of more than 0.001 mm. These sample pieces are then subjected to strain and stress under preserved lab conditions as a part of uniaxial testing in the rock mechanics laboratory.

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