1.2. Tolerances in Batching

Try these first

1. 1.

   What is the tolerance for cement in batching?

   Hint

   Refer to the tolerances mentioned in the section.

2. 2.

   Name one reason why tolerances are important.

   Hint

   Think about what happens during the mixing process.

3. 3.

   What is the tolerance for aggregates in batching?

   • ±1%
   • ±2%
   • ±3%

   Hint

   Refer back to the tolerances discussed in this section.

4. 4.

   True or False: The tolerance for water is ±3%.

   • True
   • False

   Hint

   Check the summary of tolerances mentioned.

5. 5.

   You are batching a concrete mix with 300 kg of aggregate. What is the allowable variation in the aggregate weight?

   Hint

   Use the tolerance percentage to calculate the range.

6. 6.

   If a concrete batch requires 100 liters of water, how much water can be used without exceeding the tolerance?

   Hint

   Calculate the permissible range using the tolerance.