LESSON 4
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
Route selection
Locating water and aggregate
Time estimation
Route Selection. (page 4-1)
Locating Water and Aggregate. (page 4-2)
Time Estimation. (page 4-2)
2.
Building approach roads
Clearing and draining the site
Stockpiling construction materials
Positioning of batching plant
Location and construction of safety facilities
Site Preparation (page 4-2)
3.
Measurement by weight
Measurement by volume
Aggregate. Measure aggregate ... (page 4-4)
4.
Segregation
Handling Techniques (page 4-10)
5.
Speed
Minimum material segregation
No delays
The three main requirements... (page 4-12)
6.
Avoid segregation
Proper consolidation
Proper bonding between placements
Control temperature
Principles. The principles of proper ... (page 4-13)
7.
Mechanical vibrators
Hand spading, puddling, or tamping
The best compacting tool ... (page 4-15)
Manual consolidation methods require... (page 4-16)
EN5466
4-36
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