7.11.A. Use of Nanomaterials

Try these first

1. 1.

   What is nano-silica?

   Hint

   Think about what silica is in general and how the nano form differs.

2. 2.

   Name a benefit of using carbon nanotubes in concrete.

   Hint

   Consider how these components affect overall strength.

3. 3.

   What is one benefit of using nano-silica in concrete?

   • Increased size
   • Lower cost
   • Enhanced strength

   Hint

   Focus on the material’s effect on strength.

4. 4.

   True or False: Carbon nanotubes can improve the tensile strength of concrete.

   • True
   • False

   Hint

   Consider the properties of nanotubes.

5. 5.

   Consider a construction project that potentially implements nanomaterials in its mixes. What factors must be analyzed before deciding to use these materials?

   Hint

   Think about economic and functional considerations in construction.

6. 6.

   If the performance of concrete with nanomaterials is significantly superior, how can we justify the increased costs?

   Hint

   Consider life-cycle costs vs. initial investment.