15.2. Routine On-Site Tests

Try these first

1. 1.

   What does the slump test measure?

   Hint

   Think about how concrete behaves when it is mixed.

2. 2.

   Why is temperature measurement important in concrete?

   Hint

   Consider how heat influences concrete behavior.

3. 3.

   What does a slump test measure?

   • Air content
   • Temperature
   • Workability

   Hint

   It's related to how the concrete flows.

4. 4.

   True or False: Monitoring air content is unnecessary if the concrete is not exposed to freezing temperatures.

   • True
   • False

   Hint

   Consider the role of air in concrete properties.

5. 5.

   You are tasked with checking a batch of concrete for a large pour. The slump test shows a value of 200 mm. Discuss how this might impact the project.

   Hint

   Think about the trade-offs when concrete is too fluid.

6. 6.

   If a routine air content test indicates a result of only 3%, analyze what steps you would take to address this issue.

   Hint

   Consider the types of admixtures that can influence air content.