4500 PSI

4500 PSI 3/8" RK 70/30 is a high-strength concrete mix with a design strength of 4500 PSI and 3/8-inch rock aggregate, using a 70/30 sand-to-gravel ratio. This mix is engineered for applications requiring superior durability and load-bearing capacity, including commercial slabs, driveways, foundations, and infrastructure projects.

With enhanced strength and long-term performance, 4500 PSI concrete is suitable for heavy-duty surfaces and structures that demand resistance to mechanical stress. Compliance with California construction standards ensures consistent quality and structural reliability.