Concrete cost installed per cubic yard Laborer cost per hour. Provide all concrete mix designs for review and approval. 3,000 PSI concrete at 28-day mix design for all normal weight concrete. 4,500 PSI concrete at 28-day mix design for all foundation walls. Typical precast wall foundation to be 2’-0” wide at a minimum of 3’-6” below grade depth with two (2) #5 continuous rebar at the top and bottom of the footing. One 4’-0” x 4’-0” x 1’-0” column footing with five (5) #4 rebar bars each way at the bottom per structural plans. One 4’-6” x 4’-6” x 1’-0” column footing with five (5) #4 rebar bars each way at the bottom per structural plans. CONCRETE FLOOR SLAB Provide all concrete mix designs for review and approval. 4,000 PSI concrete at 28-day mix design. 5” unreinforced office slab on 10 mil. vapor barrier over 6” granular fill. ¾” diameter by 12” long smooth round dowels at 16” O.C. for new slab tie in to existing concrete slab. Minimum three (3) dowls for doorway. 1/8” early entry saw cut control joints to 1 ½” deep with joint filler. 3/8” PNA diamond dowels @ 18” O.C. at construction joints. Ashford formula penetrating concrete floor sealer/hardener on new expansion concrete slab.
