The prominent mechanical property of concrete is compressive strength which guarantees the performance and safety of the structure in its life cycle. Assessment of compressive strength. especially for high-performance concrete. is first due to the nonlinear relationship between the compressive strength and the concrete constituents. https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC550-WUH721816ALE6L0-0F38460-16TB-7-2K-RPM-SATA-6Gb-s-512e-ISE-3-5in-Hard-Drive/