Kubusproeven

Kubusproeven, also known as cube testing, is a standardized method used in civil engineering and material science to assess the compressive strength of concrete and other cementitious materials. This testing involves preparing concrete specimens in the shape of cubes, typically with dimensions of 150 mm x 150 mm x 150 mm (6 inches), which are then cured under controlled conditions.

The primary purpose of kubusproeven is to evaluate the quality and strength development of concrete during and after curing. Once the specified curing period—often 28 days—is complete, the cubes are subjected to a compression test using a universal testing machine. The maximum load endured before failure is recorded, and the compressive strength is calculated by dividing this load by the cross-sectional area of the cube.

Kubusproeven are standardised by various international standards, such as ASTM C109 and EN 12390-3, ensuring consistent testing procedures across laboratories. The results help engineers determine whether the concrete meets the required strength specifications for construction projects, ensuring safety and durability.

The advantages of cube testing include simplicity, repeatability, and the ability to monitor concrete strength development over time. However, some limitations exist, such as potential discrepancies between cube strength and real-world structural performance, especially in larger elements. Despite this, kubusproeven remain a widely accepted and essential method for quality control in concrete construction.