3.2.3. Thermal Properties

Try these first

1. 1.

   What is thermal expansion?

   Hint

   Think about how materials change size with temperature.

2. 2.

   Why is thermal conductivity important in concrete?

   Hint

   Consider the comfort and energy efficiency of buildings.

3. 3.

   What property affects the ability of concrete to insulate against heat?

   • Thermal expansion
   • Thermal conductivity
   • Porosity

   Hint

   Consider which property relates to heat flow.

4. 4.

   True or False: All aggregates provide the same thermal properties.

   • True
   • False

   Hint

   Think about the differences in materials.

5. 5.

   Evaluate how high thermal conductivity in a concrete structure affects energy consumption in a hot climate. Provide potential solutions.

   Hint

   Think about ways to lower heat penetration.

6. 6.

   If a concrete structure experiences significant temperature fluctuations, suggest how to select aggregates to mitigate thermal stresses.

   Hint

   Consider both properties and their combined effects.