California · answered by Verika · verified against sources
What air content is required for concrete on California DOT projects?
Air content must be ±1.5% of the specified value (or ±1.5% of the authorized mix design value if unspecified) when air entrainment is specified [5]. If air entrainment is not specified, air content must not exceed 4% average or 5.5% for any single test [2].
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Verika provides information with citations to help you find and understand the rules that apply to your work. It is not a substitute for professional engineering or legal judgment. Answer generated 2026-08-28; always confirm against the cited source for your project.