12. Environmental Considerations During Concreting

Try these first

1. 1.

   What are two issues caused by hot weather during concreting?

   Hint

   Think about what happens to water and setting times in high temperatures.

2. 2.

   Name one precaution for cold weather concreting.

   Hint

   Consider what could help counteract low temperatures.

3. 3.

   What is a major problem with hot weather concreting?

   • Slower setting
   • Cracking
   • Increased strength

   Hint

   Think about the effects of dehydration on materials.

4. 4.

   True or False: Using ice in hot weather mixtures can help prevent rapid setting.

   • True
   • False

   Hint

   Consider the cooling effects of adding ice.

5. 5.

   Develop a comprehensive plan for a construction site located in a region that experiences extreme summer heat and winter cold. Include necessary precautions for both temperature extremes.

   Hint

   Think about both ends of the temperature spectrum.

6. 6.

   Discuss how the properties of concrete change in extreme temperatures and how that impacts structural integrity.

   Hint

   Reflect on what happens during setting to the concrete's internal structure under temperature stress.