1.3. Structure of Hydrated Cement

Try these first

1. 1.

   What is the primary product of hydration responsible for the strength of concrete?

   Hint

   Look for the 'strongest holder' of concrete.

2. 2.

   What compound protects the steel reinforcement in concrete?

   Hint

   Think of the protective layer for steel.

3. 3.

   What is the primary hydration product responsible for concrete's final strength?

   • C-S-H
   • CH
   • Ettringite

   Hint

   It's also called 'Concrete's Strongest Holder.'

4. 4.

   True or False: Calcium Hydroxide contributes significantly to the compressive strength of concrete.

   • True
   • False

   Hint

   Remember its role as a protective layer.

5. 5.

   Discuss the implications of using high-Sulfate cement in hydraulic structures regarding ettringite formation.

   Hint

   Consider the risks of improper balancing of chemical components.

6. 6.

   Calculate the ideal water-cement ratio based on given C-S-H requirements for optimal strength.

   Hint

   Reflect on the balance between strength and workability.