Specifications include, but are not limited to: 1. General Composition of Concrete Mix (4,000 psi required) Class PCC04081 (S) 1 : 2.16 : 2.20 5.7 (Gals.) 7.0 (Bags/C.Y.) 2. Coarse Aggregate: The required grading must be obtained by using 100 percent 3/8” coarse aggregate. 3. Cement: Type I or II Portland Cement must be used for Class PCC04081 (S) Concrete. 4. Admixtures: The superplasticizer admixture must be a high-range water reducer (HRWR) capable of increasing the slump of the mix from approximately 2½ inchesto 6½ inches upon the addition of the amountrecommended by the respectivemanufacturer. The HRWRmust conformto ASTM C494 Type F or Type G and shall be approved by the ConnDOT engineer when ConnDOT is the Client Agency. The use of this material must be in strict accordance with the respective manufacturer's written instructions and procedures.