Compressive strength testing measures the ability of a material, such as concrete or metal, to withstand axial loads without failing. This test involves applying a controlled force to a sample until it deforms or breaks, allowing engineers to determine the material's strength and durability. The results of compressive strength testing are crucial for construction and manufacturing, as they help ensure that structures can support the intended loads. Standards, such as those set by the American Society for Testing and Materials (ASTM), provide guidelines for conducting these tests accurately and consistently.