The air content of freshly mixed air-entrained concrete may be checked by the Planning Commission, or its duly authorized representative. Concrete with air contents above or below the amount specified shall be corrected by adjustments in the mix design or quantities of air-entraining admixture being used.
The air content shall be measured in accordance with ASTM Method of Test for Air Content of Freshly Mixed Concrete by the Pressure Method (Designation C-231) or ASTM Method of Test for Air Content of Freshly Mixed Concrete by the Volumetric Method (Designation C-173).
(Ord. 1971-2, passed 4-6-71)