20. Frequently Faced Issues and Corrections

Try these first

1. 1.

   What does it mean if concrete has a low slump?

   Hint

   Think about how easily you can work with the mix.

2. 2.

   What might cause segregation in a concrete mix?

   Hint

   Consider the distribution of materials in the mix.

3. 3.

   What should you add to correct low slump?

   • Less water
   • More water
   • More sand

   Hint

   Think about what improves fluidity in concrete.

4. 4.

   True or False: Segregation is beneficial for concrete quality.

   • True
   • False

   Hint

   Consider the importance of mixture consistency.

5. 5.

   A construction site reports consistent low slump in all concrete mixes. Conduct a thorough investigation to identify potential causes and suggested adjustments.

   Hint

   Evaluate both physical and chemical properties affecting the mix.

6. 6.

   Suppose the concrete in a newly developed building exhibits segregation after curing. What measures can be proposed to prevent this in future mixes?

   Hint

   Consider implementing best practices for mixing and batching.