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5 cards from this section. Quick, good the night before a test.
What does the fineness test measure?
Think about how smaller particles behave in a mix.
What does the Loss on Ignition test indicate?
Consider what happens when fly ash is produced.
What does fineness testing indicate about a mineral admixture?
Think about what makes fine particles useful in a mix.
True or False: A higher Pozzolanic Activity Index means lower strength gain in concrete mixes.
Recall how we measure the effects of pokzolanic materials.
You need to design a concrete mix that minimizes the effects of high water absorption in fly ash. Discuss how you would utilize specific tests before finalizing your mix design.
Think about benefits from specific properties of the admixture.
Evaluate the appropriateness of using high-loss-on-ignition fly ash for a marine structure exposed to aggressive environments. What actions would you recommend?
Refer to implications of LOI on long-term durability.
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