7.4. Acceptance Criteria and Field Application

Try these first

1. 1.

   What is the target slump range for mass concrete?

   Hint

   Think about the type of structure being worked on.

2. 2.

   Why is recording test results important?

   Hint

   Consider the implications of having no records.

3. 3.

   What is the target slump for reinforced concrete?

   • 25-75 mm
   • 75-100 mm
   • 100-150 mm

   Hint

   Remember the categories of concrete and their respective ranges.

4. 4.

   Slump tests should be conducted for each batch of concrete.

   • True
   • False

   Hint

   Consider the importance of consistency in construction.

5. 5.

   A project requires pumped concrete with a target slump range of 100-150 mm. A batch measures 95 mm. Discuss the practical steps to remedy this situation.

   Hint

   What adjustments can improve the workability without compromising strength?

6. 6.

   If a frequent slump test results show variations exceeding ±25 mm, what implications does this have, and how could these be resolved?

   Hint

   Consider what factors contribute to workability issues.