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Concrete Inspection Flashcards

6 cards from real FDOT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Concrete Inspection flashcards as text

  1. What is the minimum number of cylinders that must be cast per concrete test per FDOT requirements for acceptance testing?

    Answer: 2

    FDOT requires a minimum of 2 cylinders per test set for acceptance, with one tested at 28 days and one held as a check cylinder.

  2. According to FDOT, what is the maximum allowable slump for vibrated concrete in bridge deck construction?

    Answer: 4 inches

    FDOT specifications limit slump to a maximum of 4 inches for vibrated concrete used in bridge deck construction.

  3. What does FDOT Class V concrete designation indicate?

    Answer: High-strength structural concrete above 6,000 psi

    FDOT Class V concrete is high-strength concrete with specified compressive strengths exceeding 6,000 psi, used for high-performance applications.

  4. When should a concrete inspector reject a load of ready-mix concrete arriving on an FDOT project?

    Answer: All of the above

    FDOT specifications require rejection if any of these conditions are met: excessive drum revolutions, time limit exceeded, or concrete temperature too high.

  5. What FDOT specification requires contractors to submit a concrete mix design for approval before use?

    Answer: Section 346

    FDOT Section 346 requires contractors to submit mix designs for engineer approval prior to beginning concrete placement operations.

  6. According to FDOT guidelines, what is the maximum concrete free-fall height permitted during placement to prevent segregation?

    Answer: 6 feet

    FDOT limits free-fall height to 6 feet maximum during concrete placement to prevent segregation of aggregates from the paste.