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a. Minimum Concrete Compressive Strength: 3500 psi (24 MPa). <br />b. Normal Weight Concrete: No lightweight aggregate. <br />c. Non -air entrained. <br />2. Placement Properties: <br />a. Natural concrete slump of 4 1/2 inches - 5 inches (114 - 127 mm). Admixtures may be <br />used. <br />b. Flatness Requirements: <br />1) Overall FF 40. <br />2) Local FF 20. <br />3. Hard -Steel Troweled (3 passes) Concrete: No burn marks. Finish to ACI 302.1R, Class 5 floor. <br />a. Class 6 floors, special colored mineral aggregate hardener with repeated hard steel trowel <br />finish. <br />4. Curing Options: <br />a. Membrane forming curing compounds (ASTM C309, Type 1, Class B, all resin, dissipating <br />cure). <br />1) Acrylic curing and sealing compounds not recommended. <br />b. Sheet membrane (ASTM C171); polyethylene film not recommended. <br />c. Damp Curing: Seven day cure. <br />1.4 ACTION SUBMITTALS <br />A. Shop Drawings: Indicate information on shop drawings as follows: <br />1. Typical layout including dimensions and floor grinding schedule. <br />2. Plan view of floor and joint pattern layout. <br />3. Areas to receive colored surface treatment. <br />4. Hardener, sealer, densifier in notes. <br />B. Product Data: Submit product data, including manufacturer's SPEC -DATA product sheet, for specified <br />products. <br />1. Material Safety Data Sheets (MSDS). <br />2. Preparation and concrete grinding procedures. <br />3. Colored Concrete Surface, Dye Selection Guides. <br />1.5 INFORMATION SUBMITTALS <br />A. Quality Assurance: <br />1. Test Reports: Certified test reports showing compliance with specified performance characteristics <br />and physical properties as cited in 1.03 Performance Requirements. <br />2. Certificates: <br />