2.1. Definition of Cold Weather Concreting

Try these first

1. 1.

   What temperature defines cold weather concreting?

   Hint

   Recall the critical temperature mentioned.

2. 2.

   Name one challenge of concreting in cold weather.

   Hint

   Think about how low temperature affects the concrete's chemistry.

3. 3.

   What is the critical temperature for cold weather concreting?

   • 0°C
   • 5°C
   • 10°C

   Hint

   Think about the time limit we set!

4. 4.

   True or False: Hydration speeds up in cold weather.

   • True
   • False

   Hint

   Consider the opposite of thermal energy.

5. 5.

   A concrete project must take place in temperatures expected to be at -8°C. Discuss all precautions that must be taken beyond just heating the mix.

   Hint

   Consider everything we've talked about.

6. 6.

   Analyze how the hydration process differs in cold versus warm weather and outline resulting impacts on compressive strength.

   Hint

   Think about the chemical reactions we discussed.