7.4.7. Mixing and Testing

Try these first

1. 1.

   What is the purpose of a slump test?

   Hint

   Think about the consistency of concrete.

2. 2.

   What does compressive strength measure?

   Hint

   Consider what happens under pressure.

3. 3.

   What is the primary purpose of the slump test?

   • To measure compressive strength
   • To evaluate workability
   • To assess thermal properties

   Hint

   Think about what might happen to the concrete during placement.

4. 4.

   True or False: High Performance Concrete relies solely on mixing without further testing.

   • True
   • False

   Hint

   Consider what is necessary to validate the performance of concrete.

5. 5.

   Design an experiment to test the effectiveness of different superplasticizers on HPC workability. Include your testing methods.

   Hint

   Consider how each additive would change the fluidity of the concrete.

6. 6.

   How would you address a situation where HPC tested below the expected compressive strength? Outline steps to investigate and solve.

   Hint

   Think about the components of your mix and the procedures followed.