13. Formwork Considerations Related to Fresh Concrete

Try these first

1. 1.

   What does fresh concrete exert against formwork?

   Hint

   Think about how fluids behave.

2. 2.

   Why should formwork be watertight?

   Hint

   Consider the consequences of leakage.

3. 3.

   What is the primary reason for formwork to be watertight?

   • To increase the setting time
   • To prevent loss of water and maintain workability
   • To reduce construction time

   Hint

   Think about how water affects concrete curing.

4. 4.

   True or False: Fresh concrete does not exert any pressure on formwork.

   • True
   • False

   Hint

   Consider how fluids behave under pressure.

5. 5.

   In the design of a new concrete structure, assess how varying temperatures affect fresh concrete pressure on formwork in a high-rise construction setup.

   Hint

   Consider how temperature affects fluid dynamics and setting times.

6. 6.

   Evaluate a failure case where formwork buckled during placement. Identify the factors that could have contributed to this incident and suggest improvements for future projects.

   Hint

   Think of the physics behind structures under strain.