4.3. Quality Control

Try these first

1. 1.

   What is the slump test used for?

   Hint

   Think about the consistency of the mix.

2. 2.

   What does record keeping in quality control involve?

   Hint

   Consider what information might be important for traceability.

3. 3.

   What is the primary purpose of quality control in RMC?

   • To ensure proper curing
   • To maintain product standards
   • To train the workforce

   Hint

   Think about what quality control aims to achieve.

4. 4.

   True or False: The time from batching to placement should be no more than 90 minutes.

   • True
   • False

   Hint

   Reflect on the guidelines set by the standards.

5. 5.

   You are responsible for a concrete batch that fails the compressive strength test after 28 days. What steps would you take to analyze and rectify the issue?

   Hint

   Consider the entire process from batching to placement.

6. 6.

   A construction site reports inconsistent workability of different batches delivered. Design a plan to investigate and improve consistency in future deliveries.

   Hint

   Think about all aspects from production to transport that could influence the outcome.