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bagged mixture is prepared in accordance with the manufacturer's recommendations and will <br /> meet the requirements of this Specification. <br /> 344-3.9 Sampling and Testing: <br /> 344-3.9.1 Category 1: The Engineer may sample and test the concrete at his <br /> discretion to verify its quality. The minimum 28 day compressive strength requirement for this <br /> concrete is 2,500 psi. <br /> 344-3.9.2: Category 2: Provide a statement of certification from the <br /> manufacturer of the precast element that the element meets the quality control and inspection <br /> testing requirements of the Contract Documents. <br /> 344-3.9.3 Category 3: The Agency will randomly select a sample from each 200 <br /> yd 3 or one day's production to determine plastic properties and to make three 4 x 8 inch <br /> cylinders for testing by the Agency at 28 days to ensure that the design compressive strength <br /> has been met. The Agency may, at its discretion, test additional concrete samples to ensure <br /> compliance with the specifications. <br /> 344-3.10 Records: Maintain the following records for review for at least 3 years after <br /> final acceptance of the project: <br /> 1. Approved concrete mix designs. <br /> 2. Materials source (delivery tickets, certifications, certified mill test reports). <br /> 3. A copy of the scale company or testing agency report showing the observed <br /> deviations from quantities checked during calibration of the scales and meters. <br /> 4. A copy of the documentation certifying the admixture weighing/measuring <br /> devices. <br /> 5. For Non Structural LAP concrete the Agency will accept recent NRMCA, <br /> VMMB or FDOT inspection records certifying the plant or truck can produce concrete. In <br /> addition, documentation will be available at the plant or in the truck showing that action has <br /> been taken to correct deficiencies noted during the inspections. <br /> 344-4 Acceptance of the Work. <br /> 344-4.1 Category 1 Work: Category 1 work will be accepted based upon compliance <br /> with Production, Mixing and Delivery Requirements specified in 344-3. <br /> 344-4.2 Category 2 Work: Precast elements will be accepted based upon certification <br /> from the Contractor that the elements were produced by a production facility on the FDOT's <br /> current approved plant list. In addition, the producers QC stamp will be displayed on the <br /> element. <br /> 344-4.3 Category 3 Work: Category 3 work shall be in full compliance with this <br /> Specification, and with current FDOT Specifications, Section 346 and associated Contractor <br /> Quality Control (QC) specifications governing cast-in-place concrete. In addition, a Delivery <br /> Ticket as described in 344-3.5 will be required for acceptance of the material at the project <br /> site. <br /> 344-5 Method of Measurement. <br /> The quantities to be paid for will be the items shown in the plans, completed and <br /> accepted. <br /> 01025-39 Technical Specifications <br /> FAPublic Works\ENGINEERING DIVISION PROJECTS\08456-Old Dixie Hwy Sidewalk(38th Ln-45th St)\Admim\bid <br /> documents\Master Contract Documents\Technical Specifications.doc <br />