Concrete Preparation is an important part of any construction project that involves concrete. Proper preparation of the ground ensures that the concrete foundation is stable and durable, reducing the risk of cracks, uneven surfaces, and other issues.

The process of earthworks concrete preparation involves the excavation, grading, and compaction of the soil to create a level and stable surface. This is typically done using heavy equipment such as bulldozers, graders, and rollers/compactors. The area must be cleared of all debris, vegetation, and other materials that could interfere with the stability and strength of the foundation.

After excavation, the soil is compacted to ensure a firm base for the concrete. This can be done using vibratory plate compactors or other equipment, depending on the size and complexity of the project. Compaction ensures that the soil is evenly compressed, reducing the risk of settling or shifting over time. In Perth we utilise a “Penetrometer (PSP)” in accordance with AS 1289 6.3.3. This test is performed using a weight on a metal rod that is lifted and dropped to drive a flat-ended rod into the ground to test the resistance. A number of tests are performed over the pad area to confirm it meets the minimum requirements before any construction can begin. PSP tests are only used when the ground material is sand or sand fill. For clay, a Dynamic Cone Penetrometer (DCP) is used to perform the test.

Once the soil is properly prepared, a layer of gravel or other aggregate material may be added to further reinforce the foundation. This layer helps to improve drainage, prevent water from pooling on the surface, and reduce the risk of frost heave.

Proper concrete preparation is essential for the success of any construction project. It ensures that the foundation is strong, durable, and able to withstand the weight and stresses of the building or structure above it.