16.5. Concrete Batching and Mixing

Try these first

1. 1.

   What is batching?

   Hint

   Think about how ingredients are prepared in cooking.

2. 2.

   Why is thorough mixing important?

   Hint

   Consider what happens if ingredients are not mixed well.

3. 3.

   What is the required minimum mixing time for concrete?

   • 30 seconds
   • 90 seconds
   • 120 seconds

   Hint

   Consider the time frame often discussed in construction standards.

4. 4.

   True or False: Batching can be done by volume.

   • True
   • False

   Hint

   Reflect on measuring systems in everyday cooking.

5. 5.

   You have mixed concrete but realize it's been 50 minutes since mixing. What are your options for usage?

   Hint

   Think about how long concrete can stay mixed without failing.

6. 6.

   Analyze a scenario where a construction site uses volume batching instead of weight batching. Discuss the implications.

   Hint

   Consider the reliability of measuring by sight versus weight.