Roller-Compacted Concrete Pavement Quiz
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Question 1 of 10
1. Question
1. Which applications has roller-compacted concrete been used?
Hint
Heavy-duty applications – Ports and Airports
Light commercial industrial applications – Maintenance and Storage Yards
Roadway applications – City streets and local roads -
Question 2 of 10
2. Question
2. True or False. RCC is engineered and constructed differently than conventional concrete, even though the concrete mixture is made of the same constituent materials.
Hint
True: RCC is engineered and constructed differently than conventional concrete, even though the concrete mixture is made of the same constituent materials.
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Question 3 of 10
3. Question
3. What is an example of a light commercial industrial application of roller-compacted concrete?
Hint
Light commercial industrial applications- Warehouses and manufacturing facilities
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Question 4 of 10
4. Question
4. How is RCC placed?
Hint
RCC is placed with asphalt-type pavers, not with the typical slip-form concrete paving machines or vibrating screeds.
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Question 5 of 10
5. Question
5. Which one is true about RCC?
Hint
RCC mixtures have “negative” slump. Any slump in an RCC mixture is too much.
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Question 6 of 10
6. Question
6. Which two items are important for aggregates used in RCC construction?
Hint
Two items are important for aggregates used in RCC construction: gradation and mixture stability during paving under moisture content fluctuations.
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Question 7 of 10
7. Question
7. In respects to RCC concrete gradation, the _______ the density, the _________ the percentage of voids in the aggregate mixture.
Hint
The greater the density, the lower the percentage of voids in the aggregate mixture.
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Question 8 of 10
8. Question
8. How could the loss of fine aggregate on the surface of a roller-compacted concrete be minimized?
Hint
Some have noted that an RCC surface can lose some fine aggregate in the initial years of service. This loss can be minimized if the surface is diamond ground after construction.
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Question 9 of 10
9. Question
9. True or False. The texture of Roller-compacted concrete has a more open surface texture than conventional concrete.
Hint
The texture of the RCC surface is more open, similar to an asphalt concrete (AC) surface, since the mixture designs consist of similar aggregate gradations and shares similar placement methods.
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Question 10 of 10
10. Question
10. During construction, what is the ideal density of roller-compacted concrete?
Hint
The roll pattern is adjusted according to the moisture content of the mixture, but the goal is to achieve at least 98 percent density.