16.1.3. Prestressed Concrete Pavement

Try these first

1. 1.

   What is the primary purpose of prestressed concrete pavement?

   Hint

   Think about how tension plays a role in concrete.

2. 2.

   Define pre-tensioning in simple terms.

   Hint

   Remember, it's about tension before the concrete is set.

3. 3.

   What does prestressing in concrete do?

   • Enhances durability
   • Reduces costs
   • Prevents water ingress

   Hint

   Consider why engineers choose this method.

4. 4.

   True or False: Post-tensioning is done before the concrete is set.

   • True
   • False

   Hint

   Focus on the sequence of operations.

5. 5.

   Evaluate the lifecycle cost of a prestressed concrete pavement over 20 years compared to traditional pavement, considering initial costs and expected maintenance.

   Hint

   Look for cost-effective solutions in long-term perspectives.

6. 6.

   Design a small urban bridge using either pre-tensioned or post-tensioned methods. Discuss your rationale.

   Hint

   Consider spans and material behavior under stress.