Class F fly ash used in concrete corresponds to which parameter?

Study for the FDOT Concrete Field Inspector Specification Exam. Prepare with comprehensive questions, detailed explanations, and helpful hints. Master your exam preparation!

Multiple Choice

Class F fly ash used in concrete corresponds to which parameter?

Explanation:
Class F fly ash is identified by meeting a specific specification, and the controlling parameter for its use is the Fly Ash Certification. This certification confirms the material comes from a source and composition that meet Class F (as defined by ASTM C618), ensuring the proper pozzolanic performance in concrete. The other items—chloride test results, acceptance concrete temperature, and cubic yards of load—do not define the fly ash class; they relate to corrosion potential, placement conditions, or quantity, not to its classification. Rely on the certification to verify the fly ash is suitable for use as Class F.

Class F fly ash is identified by meeting a specific specification, and the controlling parameter for its use is the Fly Ash Certification. This certification confirms the material comes from a source and composition that meet Class F (as defined by ASTM C618), ensuring the proper pozzolanic performance in concrete. The other items—chloride test results, acceptance concrete temperature, and cubic yards of load—do not define the fly ash class; they relate to corrosion potential, placement conditions, or quantity, not to its classification. Rely on the certification to verify the fly ash is suitable for use as Class F.

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