What is the required minimum concrete compressive strength for cast-in-place concrete foundations in California seismic design category E?
Correct Answer
C) 3,000 psi
CBC Section 1905.2 requires a minimum concrete compressive strength of 3,000 psi for structural concrete in seismic design categories D, E, and F. This higher strength requirement compared to non-seismic regions ensures adequate performance during seismic events common in California.
Why This Is the Correct Answer
CBC Section 1905.2 requires a minimum concrete compressive strength of 3,000 psi for structural concrete in seismic design categories D, E, and F. This higher strength requirement compared to non-seismic regions ensures adequate performance during seismic events common in California.
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