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THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 033100 Structure Concrete-8 <br />submitted to Engineer for approval, by use of mid or high range water <br />reducing admixtures to control slumps required for pumping of concrete. <br />Strength, placing and finishing requirements shall be maintained. <br /> <br />H. Concrete mixtures placed directly over vapor retarders shall be designed to have <br />low shrinkage characteristics and designed to minimize slab curling. <br /> <br />I. Initial and final set times of concrete mix designs shall be coordinated <br />between the contractor and concrete supplier. <br /> <br />2.8 SCHEDULE OF MIXES <br /> <br />A. Footings, Pile Caps, and Drilled Piers: Proportion normal-weight concrete mix as <br />follows: <br /> <br />1. Compressive Strength (28 Days): 3000 psi. <br /> <br />2. Maximum Aggregate Size: 1-1/2 inches. <br /> <br />3. Air Entrainment: 6 percent air content is required with an acceptable air <br />content of plus or minus 1.5 percent. <br /> <br />4. Maximum Water-Cement Ratio: 0.50. <br /> <br />B. Foundation Walls, Grade Beams: Proportion normal-weight concrete mix as <br />follows: <br /> <br />1. Compressive Strength (28 Days): 4000 psi. <br /> <br />2. Maximum Aggregate Size: 3/4 - inch. <br /> <br />3. Air Entrainment: 6 percent air content is required with an acceptable air <br />content of plus or minus 1.5 percent. <br /> <br />C. Slab on Metal Deck: Proportion normal weight concrete mix as follows: <br /> <br />1. Compressive Strength (28 Days): 3000 psi. <br /> <br />2. Maximum Aggregate Size: 3/4 - inch. <br /> <br />D. Interior Slab-on-Ground, Equipment Pads: Proportion normal-weight concrete mix as <br />follows: <br /> <br />1. Compressive Strength (28 Days): 3500 psi. <br /> <br />2. Maximum Aggregate Size: 3/4 - inch. <br /> <br />3. Air Entrainment: 6 percent air content is required with an acceptable air <br />content of plus or minus 1.5 percent. <br /> <br />4. Maximum Water-Cement Ratio: 0.45. <br /> <br />E. Exterior Slab-on-Ground, Walks, Paving, Curbs, Equipment Pads: Proportion normal-