1.3. Measures to Control Effects of Hot Weather

Try these first

1. 1.

   What is the primary issue faced when placing concrete in hot weather?

   Hint

   Think about what high temperatures do to water.

2. 2.

   What kind of admixture can slow down concrete setting in hot weather?

   Hint

   These are not accelerators.

3. 3.

   What is a common effect of hot weather on concrete?

   • Increased strength
   • Plastic shrinkage cracking
   • Decrease in temperature

   Hint

   Think about what happens when water evaporates quickly.

4. 4.

   True or False: Curing compounds can help retain moisture in hot weather.

   • True
   • False

   Hint

   Consider products used to enhance concrete curing.

5. 5.

   You are assigned to a construction project in a region experiencing a heatwave with temperatures above 40°C. Outline a comprehensive strategy including material management, placement timing, and curing techniques.

   Hint

   Recall all the measures discussed under each category.

6. 6.

   Evaluate the challenges that can arise if proper measures are not taken while concreting in high temperatures.

   Hint

   Think about what can happen when moisture is lost too quickly.