2.13.2. Frost Susceptible Soils

Try these first

1. 1.

   What is frost heave?

   Hint

   Think about how water changes form in cold temperatures.

2. 2.

   Name one type of soil that is frost susceptible.

   Hint

   Consider the finer particles.

3. 3.

   What is one major consequence of frost action in soils?

   • Cracking of pavements
   • Increased weight support
   • Enhanced water retention

   Hint

   Think about what happens to roads during cold weather.

4. 4.

   True or False: Frost susceptible soils mainly include coarse gravel and boulders.

   • True
   • False

   Hint

   Recall the types of soils that are affected by frost.

5. 5.

   Design a small-scale pavement section for a cold region using frost susceptible soils. Describe what materials and methods you will employ to mitigate frost heave.

   Hint

   Consider what materials are least affected by frost.

6. 6.

   Evaluate the potential economic impacts of inadequate frost heave management on a city’s transportation budget.

   Hint

   Think about the long-term costs of neglecting infrastructure.