PCC Level 1 Practice Test

How many times does the rolling operation occur for the volumetric rollameter test?

1-2 times 2-3 times 3-4 times 4-5 times

Correct Answer:

2-3 times

Explanation:

In the volumetric rollameter test, the rolling operation is used to shape and compact the material so the test specimen has a uniform volume and density. You perform two to three rolling passes to achieve that uniformity: the first pass helps establish the basic shape and begin compaction, the second pass refines the density and surface evenness, and a potential third pass ensures consistent density across the entire specimen. Going only once can leave irregularities, while more than three passes risks overworking the material and altering its properties. So the rolling is done two to three times.

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