Vermont · answered by Verika · verified against sources
What air content is required for concrete on Vermont DOT projects?
For Vermont DOT projects, concrete air content must be 7% (±2%) when tested per AASHTO T 152 [1,4]. The minimum air content for production is set by the Contractor’s qualification mix testing, but must not be less than the approved value [8].
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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.