9. Quality Control and Testing

Try these first

1. 1.

   What is the purpose of a slump flow test?

   Hint

   Think about how we measure flowability.

2. 2.

   Name one benefit of conducting trial mixes before mass production.

   Hint

   Consider how trials can reduce wastage.

3. 3.

   What is the main goal of quality control in SCC?

   • To improve aesthetic quality
   • To ensure performance and consistency
   • To reduce construction time

   Hint

   Think about why consistent performance is crucial in construction.

4. 4.

   The V-funnel test measures:

   • Workability
   • Curing time
   • Compressive strength

   Hint

   Consider what tests gauge the concrete's movement.

5. 5.

   If an SCC mix consistently fails the slump flow test, what adjustments would you recommend making to the mix design? Provide detailed suggestions.

   Hint

   Think about how each mix component affects overall flow.

6. 6.

   During mass production, the SCC shows signs of early segregation. How would you diagnose the issue and propose solutions to mitigate this during subsequent mixes?

   Hint

   Consider environmental factors and material properties when diagnosing segregation.