(a) Any concrete used for any of the purposes set forth in this chapter shall:
(1) Contain a cement content of six and one-half bag mix, at 94 pounds per bag, of Portland cement; with a minimum compressive strength of 4,000 PSI at 28 day;
(2) Contain no more water than will permit a slump between a minimum of two inches and a maximum of four inches:
(3) Contain small, clean, durable and well-graded aggregates of a diameter of one inch or smaller; and
(4) Contain a total air content from all sources of 6% to 8% at the time of the pour.
(b) Notwithstanding the foregoing, if a contractor elects to utilize a super plasticizer as an additive in concrete, a slump between a minimum of eight inches and a maximum of nine and one-half inches shall be required, and the total air content from all sources may exceed 8% at the time of the pour.
(Ord. 2006-12. Passed 4-10-06.)