Concrete shall consist of a mixture of Portland Cement, fine aggregate, coarse aggregate, water and an air-entraining agent so proportioned and mixed as to produce a plastic, workable mixture suitable for the specific conditions of placement. The work shall be performed in accordance with these specifications and in such a manner that completed items will conform to lines, grades and elevations as shown on the plans. 2.02 PORTLAND CEMENT A. Cement shall conform to ASTM C150, Type I. Cement may be bagged or bulk. Cement shall be used from only one mill throughout the entire project. 2.03 AGGREGATES A. Fine Aggregate for Structural Concrete: Fine aggregate shall conform to ASTM C33 and have the following gradation:
