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3 cards from this section. Quick, good the night before a test.
What is the purpose of water-reducing admixtures?
Think about why we want to have less water in concrete.
Name an example of a common retarder.
What do factories often use to delay setting?
What do accelerating admixtures do?
Remember what we discussed about projects in cold weather.
True or False: All admixtures can be mixed together without any concerns.
Think about the interactions we mentioned during compatibility testing.
Evaluate the implications of using an incompatible combination of a retarder and a superplasticizer in a concrete mix. What might happen?
Consider the roles these admixtures play in the hydration process.
Design a concrete mix for a cold-weather environment. Specify which admixtures to use and justify your choices.
Think about the challenges posed by low temperatures.
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