R404.1.3.3.1

Section R404.1.3.3.1 is titled 'Compressive strength' and covers the requirements for minimum concrete strength in concrete foundation walls. Cross-reference to another code section and minimum strength at a designated time period for groups of seismic design category locations is established. The purpose of this section is to prevent structural failure.

The model shows a concrete cylinder being tested for strength in a compression testing machine.