10.1. RMC Quality Assurance

Try these first

1. 1.

   What does RMC stand for?

   Hint

   Think about the term used for pre-mixed concrete delivered to construction sites.

2. 2.

   Why is calibration important in RMC production?

   Hint

   Consider the impact of accuracy in measurements on the concrete's quality.

3. 3.

   What does RMCMA stand for?

   • Ready Mix Concrete Manufacturers' Association
   • Ready Mix Concrete Management Association
   • Ready Mix Concrete Monitoring Association

   Hint

   The acronym relates to the governing body for quality in the concrete industry.

4. 4.

   True or False: The slump test is used to determine the compressive strength of concrete.

   • True
   • False

   Hint

   Remember what properties a slump test is meant to measure.

5. 5.

   You are tasked with evaluating RMC deliveries at a construction site. A batch arrives showing a slump of 6 inches, and the temperature is 32°C. Discuss the steps you would take in this situation.

   Hint

   Consider the implications of using concrete with unacceptable workability.

6. 6.

   Given that moisture content greatly fluctuates, design a protocol for adjusting concrete mix designs based on varying moisture levels in aggregates.

   Hint

   Think about how variations interact with the concrete's final properties.