4.4. IS Code Guidelines

Try these first

1. 1.

   What is segregation in concrete?

   Hint

   Think about what happens to solid and liquid mixtures.

2. 2.

   Define bleeding in fresh concrete.

   Hint

   Consider the relationship between water and solids in a mix.

3. 3.

   What is segregation in concrete?

   • Separation of aggregates
   • Adding water
   • None of the above

   Hint

   Focus on how the components of concrete relate to each other.

4. 4.

   True or False: Bleeding is always a desirable phenomenon in fresh concrete.

   • True
   • False

   Hint

   Think about the surface quality of concrete.

5. 5.

   Given a scenario where fresh concrete shows signs of segregation at a construction site, outline the steps that should be taken to rectify the situation.

   Hint

   Think about both material factors and handling methods.

6. 6.

   Describe how high temperatures during concrete curing can increase the risk of slump loss and propose specific strategies to mitigate this risk.

   Hint

   Consider cooling methods for both the mix and the environment.