3.2. Mechanism

Try these first

1. 1.

   What is tensile failure?

   Hint

   Think about how concrete behaves under tension.

2. 2.

   Describe what happens during compressive failure.

   Hint

   Consider what happens when compressive forces are applied.

3. 3.

   What characterizes tensile failure in hardened concrete?

   • It occurs under compressive loads.
   • It is characterized by sudden cracking.
   • It is a gradual failure process.

   Hint

   Consider the nature of how concrete behaves under tension.

4. 4.

   True or False: Compressive failure usually involves straightforward microcracking.

   • True
   • False

   Hint

   Reflect on all the stages of failure in compressive scenarios.

5. 5.

   Analyze a scenario where a bridge collapses due to fatigue failure. Identify the contributing factors and propose engineering solutions.

   Hint

   Reflect on the volume of load cycles the bridge undergoes.

6. 6.

   Discuss the implications of durability-based failure in coastal concrete structures. Provide real-world examples.

   Hint

   Consider how environmental exposure impacts concrete longevity.