Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
7.1. Purpose
This section
Practice test
11 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
4 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is the main purpose of compaction in concrete?
Hint
Think about how air affects the structure.
- 2.
Name a method used for compaction.
Hint
Consider tools you might use.
- 3.
What does compaction primarily aim to eliminate?
- Water
- Air Voids
- Aggregates
Hint
Consider what weaknesses might be present if air is trapped.
- 4.
True or False: Mechanical vibration can potentially lead to segregation if overused.
- True
- False
Hint
Think about the definition of segregation.
- 5.
Design a small project where you need to decide on compaction methods based on the area size and accessibility.
Hint
Consider the volume and reach of compacting equipment.
- 6.
Evaluate the strengths and weaknesses of using mechanical vibrators excessively in a tall building project.
Hint
Think about how different layers may react to vibration.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting