2.6. Setting and Hardening of Cement

Try these first

1. 1.

   What is the initial setting time of cement?

   Hint

   Recall the first phase of setting.

2. 2.

   What is hardening in relation to cement?

   Hint

   Think about what happens as cement continues to hydrate.

3. 3.

   What do we call the transition of cement from fluid to solid state?

   • Setting
   • Hardening
   • Hydration

   Hint

   This term focuses on the initial phase of the cement process.

4. 4.

   True or False: Hardening occurs immediately after setting.

   • True
   • False

   Hint

   Consider the timeframe of strength gain.

5. 5.

   A construction site has cement that begins to set before placement due to high environmental temperatures. Discuss the implications this could have on the project.

   Hint

   Consider the impacts on time management and concrete finishing.

6. 6.

   Evaluate how cutting down the water-to-cement ratio can affect both the setting and hardening phases of cement.

   Hint

   Reflect on the balance between workability and strength in construction.