14.1. Hot Weather Concreting

Try these first

1. 1.

   What is one consequence of high temperatures during concrete pouring?

   Hint

   Think about moisture levels in hot weather.

2. 2.

   What type of water is suggested to be used in hot weather?

   Hint

   It's meant to lower the concrete temperature.

3. 3.

   What is a serious effect of hot weather on concrete?

   • Increased strength
   • Plastic shrinkage cracks
   • Lower water demand

   Hint

   Think about how heat affects moisture.

4. 4.

   True or False: The use of retarders can help in managing the setting time of concrete in hot weather.

   • True
   • False

   Hint

   Consider their function in temperature-sensitive conditions.

5. 5.

   A contractor is scheduled to pour concrete at noon on a 95°F day. Discuss the potential problems and propose an alternative schedule.

   Hint

   Think about the cooling times for both air and materials.

6. 6.

   You need to prepare a concrete mix for a summer project. Outline the necessary steps you need to take to ensure it sets correctly.

   Hint

   Consider all factors influencing concrete quality under heat.