6.11. Applications in Special Concretes

Try these first

1. 1.

   What is High-Performance Concrete?

   Hint

   Think about the types of constructions that need to withstand severe conditions.

2. 2.

   What role does fly ash play in mass concrete?

   Hint

   Consider why temperature control is important for large volumes of concrete.

3. 3.

   What type of concrete relies heavily on the use of silica fume for improved performance?

   • Mass Concrete
   • High-Performance Concrete
   • Self-Compacting Concrete

   Hint

   Think about which concrete types need to perform well under toughest conditions.

4. 4.

   True or False: Mineral admixtures in mass concrete only improve environmental performance.

   • True
   • False

   Hint

   Consider the physical properties of mass concrete.

5. 5.

   Design a typical mix for high-performance concrete using silica fume and describe its benefits over standard concrete.

   Hint

   Consider the required ratios and properties that distinguish HPC from regular concrete.

6. 6.

   Evaluate the environmental benefits of using rice husk ash in replacing cement in precast concrete compared to using standard materials.

   Hint

   Look into aspects of sustainability and resource utilization.