4.2. Productivity Estimation

Try these first

1. 1.

   Define a free fall mixer.

   Hint

   Think about how gravity influences the mixing process.

2. 2.

   What is cycle time?

   Hint

   Consider the steps involved in running a batch.

3. 3.

   What type of mixer uses gravity for mixing?

   • Power Mixer
   • Free Fall Mixer
   • Pan Mixer

   Hint

   Consider which mixer category relies on Earth's pull.

4. 4.

   True or False: Power mixers can handle lower slumps effectively.

   • True
   • False

   Hint

   Think about the characteristics of power mixers.

5. 5.

   A plant operates with two types of mixers: one that produces 15 m3/h and another that produces 25 m3/h. If the plant runs for 8 hours per day, how much concrete can it produce in a week?

   Hint

   Calculate daily production and multiply by the number of days.

6. 6.

   Discuss how varying the efficiency from 70% to 90% would affect production per hour and justify the significance of maintaining a good efficiency in batching plants.

   Hint

   Use the formula for calculating production based on efficiency.