Oregon · answered by Verika · verified against sources
What air content is required for concrete on Oregon DOT projects?
Air content for concrete on Oregon DOT projects must meet Table 02001-2 in 02001.20(b), with field-measured air content within ±1.5% of target values: 3/8" (6.0% moderate/7.5% severe), 1/2" (5.5%/7.0%), 3/4" (5.0%/6.0%), 1" (4.5%/6.0%), 1½" (4.5%/5.5%). Exemptions: PPCM with cast-in-place decks, seal concrete, and drilled shaft concrete require no entrained air.
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