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4 cards from this section. Quick, good the night before a test.
What type of mixer uses gravity to mix concrete?
Think about the motion involved in the mixing process.
What is a characteristic feature of a pan mixer?
Consider how the paddles might be arranged.
Which type of mixer is better for stiff mixes?
Consider the relationship between the type of mix and mixer design.
True or False: Mixing duration is unimportant for achieving homogeneous concrete.
Reflect on the mixing standards provided in the guidelines.
Given a pan mixer that can hold 1500 liters and a cycle time of 6 minutes, calculate its concrete batch production in cubic meters per hour if the efficiency is rated at 75%.
Don't forget to convert liters to cubic meters.
You are conducting a test with a trough mixer and got 12 m^3 in 10 minutes. If the batch size is 3 m^3, how many batches did you complete and what is your batching efficiency?
Always remember to calculate total time in hours!
5 more questions in this section. Enroll free to practise them all.
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