Which term specifies the approved production facility for concrete?

• A. Concrete Elapsed Time
• B. Vibrator Use
• C. Tremie Pipe Placement
• D. FDOT Concrete Source

Answer: (D)

The main idea here is understanding how FDOT designates where concrete is produced. The term that specifies the approved production facility for concrete is the FDOT Concrete Source. This designation ties the concrete you place on the job to a specific batch plant or supplier that has met FDOT’s requirements for materials, mix designs, and quality control. Having a concrete source identified ensures traceability and that the concrete being used comes from an FDOT-approved facility, which helps verify that the mix design, material quality, and testing align with project specs.

The other terms relate to different aspects of concrete work rather than identifying the source. Concrete elapsed time deals with how long after batching the concrete remains workable, vibrator use concerns proper consolidation, and tremie pipe placement refers to a placement method for certain underwater or tremie scenarios. None of those designate the production facility, which is why they’re not the correct term here.