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2 cards from this section. Quick, good the night before a test.
What is the typical replacement level for Fly Ash in concrete?
Think about the function of Fly Ash in terms of its benefits.
What does w/cm stand for in concrete mix design?
Consider how water relates to cement content.
What is the typical replacement level for Silica Fume in concrete?
Consider why we use it at such a low level.
True or False: Longer curing duration limits the effectiveness of the pozzolanic reactions when using mineral admixtures.
Remember the role of curing in concrete strength.
Given a concrete mix with 1000 kg of cement, calculate how much Fly Ash would be needed if it replaces 30%. Additionally, explain the benefits of this replacement.
What is 30% of 1000 kg?
If a project specifies a concrete with a low w/cm ratio of 0.30 but you add GGBS, what adjustments might you need to consider throughout the mixing process?
Think about how low water affects the mix.
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