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2 cards from this section. Quick, good the night before a test.
What is segregation in concrete placing?
Think about what happens when concrete components don't mix well.
Why should concrete not be poured from a height greater than 1.5 meters?
Consider how gravity affects the mix.
What is one of the main considerations during the placing of concrete?
Think about how different mixtures interact.
True or False: Cold joints are beneficial in concrete construction.
Consider what 'cold' implies about the joint strength.
You have to pour concrete for a multi-layered foundation. What strategies will you adopt to ensure segregation does not occur?
Consider the characteristics of your concrete mix.
During a project, you realize your team is allowing too much time between layers. What steps can you take to address this?
Think about the bond strength between layers.
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