3000 PSI

3000 PSI 3/8" RK 60/40 is a concrete mix with a design strength of 3000 PSI and 3/8-inch rock aggregate, using a 60/40 sand-to-gravel ratio. This mix is commonly used for sidewalks, curbs, foundations, and municipal projects requiring a finer aggregate and standard structural strength.

Ideal for commercial and public infrastructure applications, the mix provides reliable performance for moderate-load structures and complies with California construction standards. Suitable for pedestrian areas and general concrete installations.