3.2. Typical Timeline

Try these first

1. 1.

   What is slump loss?

   Hint

   Think about what happens to concrete after mixing.

2. 2.

   Name one cause of slump loss.

   Hint

   Consider conditions that could make concrete set faster.

3. 3.

   What is slump loss?

   • Loss of water
   • Reduction in workability
   • Increase in temperature

   Hint

   Consider what happens to the concrete's ease of handling.

4. 4.

   High temperatures can accelerate slump loss.

   • True
   • False

   Hint

   Think about how heat impacts reactions in concrete.

5. 5.

   A construction team mixed concrete but didn't place it until after 75 minutes in a 35°C environment. What potential issues may arise, and how could this have been prevented?

   Hint

   Think about both environmental conditions and planned timing.

6. 6.

   Design a strategy for pouring concrete on a hot summer day to mitigate slump loss. Include considerations for materials, timing, and techniques.

   Hint

   Consider the logistics of temperature control in your plan.