7.2.1. Cement

Try these first

1. 1.

   What are the two grades of Ordinary Portland Cement mentioned?

   Hint

   Think about the typical strength classifications.

2. 2.

   What does PPC stand for?

   Hint

   What is blurring mixed into the cement?

3. 3.

   What is the highest strength grade of OPC typically used in HPC?

   • Grade 43
   • Grade 53
   • Grade 63

   Hint

   Think about which grade has the highest strength classification.

4. 4.

   True or False: Blended cements can improve the durability of concrete.

   • True
   • False

   Hint

   Consider how different types of cement function.

5. 5.

   Consider a construction project that requires high durability due to environmental exposure. Discuss the optimal cement choice and support it with reasons.

   Hint

   Reflect on the properties of different cements.

6. 6.

   You have been tasked with finding the ideal proportions for a concrete mix that uses both OPC and blended cement. How would you structure the trials?

   Hint

   Think about testing different proportions for optimal performance.