3.3. Using Lightweight Aggregates

Try these first

1. 1.

   What is mortar grout used for in concrete pumping?

   Hint

   Think about preventing blockages.

2. 2.

   Why is it important to clean the pump and pipelines after use?

   Hint

   Consider how tools are kept in good condition.

3. 3.

   What is used to lubricate the pump before pumping concrete?

   • Water
   • Mortar grout
   • Oil

   Hint

   Consider what you would use to help a liquid flow better.

4. 4.

   True or False: Lightweight aggregates will not absorb water during the pumping process.

   • True
   • False

   Hint

   Think about sponges again.

5. 5.

   You are tasked with designing a concrete mix for a project using lightweight aggregates. Outline the steps you would take to ensure pumpability.

   Hint

   Think about everything we've discussed regarding preconditioning and mix design.

6. 6.

   In a congested job site, you are deciding between a traditional pump and a truck-mounted pump. What factors lead to your decision-making?

   Hint

   Think about how accessibility and efficiency play roles in your decision.