6.1. Slump Test (IS 1199:1959)

Try these first

1. 1.

   What does the slump test measure?

   Hint

   Think about what concrete needs to be before it's set.

2. 2.

   What is an acceptable slump range for general construction?

   Hint

   Consider what you remember about normal requirements.

3. 3.

   What is the purpose of the slump test?

   • To measure concrete strength
   • To measure workability
   • To measure temperature

   Hint

   Think about how concrete's workability affects its application.

4. 4.

   The acceptable slump range for normal construction is?

   • 50-100 mm
   • 75-125 mm
   • 100-150 mm

   Hint

   Think about what slump means in terms of height.

5. 5.

   A construction site mixes concrete that tests a slump of 150 mm. Discuss the implications and how the team could address this issue.

   Hint

   Consider what effects a high slump could have on workability.

6. 6.

   After performing the slump test, the results show a low slump of 50 mm. What actions should the team take to improve the mix before placement?

   Hint

   Recall the balance between water content and workability.