10.1. Performance-Based Specifications

Try these first

1. 1.

   What is the main focus of performance-based specifications?

   Hint

   Think about how that differs from traditional codes.

2. 2.

   Name one key performance metric in concrete durability.

   Hint

   It relates to water and chemical ingress.

3. 3.

   What is a key benefit of performance-based specifications?

   • Increased regulations
   • Flexibility in material selection
   • Strict adherence to w/c ratios

   Hint

   Think about the flexibility offered in choosing suitable materials.

4. 4.

   True or False: The service life of a concrete structure typically ranges from 5 to 10 years.

   • True
   • False

   Hint

   Recall the typical expected lifespan of concrete structures.

5. 5.

   A large infrastructure project requires concrete designed for a coastal environment known to have high chloride levels. Discuss how performance-based specifications might influence the material choice and design decisions.

   Hint

   Think about the environmental exposures the concrete will face.

6. 6.

   Critique a traditional prescriptive specification in terms of performance. How could a performance-based approach offer improvements?

   Hint

   Consider examples of concrete failures due to prescriptive limitations.