2.2 FINE AND COARSE AGGREGATES
A. Comply in all respects to ASTM C33.
B. Maximum size of coarse aggregates:
1. General concrete - 1% inches.
2. Floor slabs and walls - 34 inch.
C. Coarse aggregate for concrete used for floor slabs shall be crushed rock or
screened, washed gravel, and shall be clean, hard and free of clay, organic and
other deleterious matter.
D. Fine aggregate shall be sand which is washed and free of clay, organic, and other
deleterious matter.
2.3. WATER
A. Use public potable water supply.
2.4 ADMIXTURES
A. Water-reducing - Conform to ASTM C494, Type A.
B. Air-entraining - Conform to ASTM C260.
2.5 REINFORCING STEEL
A. Reinforcing steel bars shall be deformed new billet steel conforming to ASTM
A615, Grade 60. Wire fabric shall be cold drawn steel conforming to ASTM A185.
B. Wall Anchor Bolts
1. Zinc coated steel by the hot-dip process after fabrication to a minimum of
1.25 ounces of zinc per square foot of surface when tested in accordance with
ASTM A90.
2. Rigid steel anchors not less than %2-inch diameter by 24 inches long with one
end bent not less than 2 inches, and the long leg threaded at least 6 inches.
2.6 EXPANSION JOINT MATERIAL
A. Expansion joint material shall be resilient, waterproof, non-extruding type
premolded closed cell polyethylene foam, ¥%-inch minimum thickness, and of the
width required for full depth joints. The expansion joint material shall include a
strip-off removable edge.
File No. 3066.09 Cast-in-Place Concrete 03300 - 2 of 6 December 2017
