[Engineering Version] Daily Question 20180113
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Regarding the key construction points for rolling hot-mix asphalt mixtures, the correct statements are ( ). A. The compaction process consists of three stages: initial compaction, secondary compaction, and final compaction (including shaping).B. The roller should roll from the center toward the sides, with adjacent rolling zones overlapping by 1/3 to 1/2 of the roller’s width.
C. During rolling, the drive wheels should be facing the paver, using gravity to press the material downward and prevent it from shifting.
D. To prevent the rollers from sticking to the asphalt, diesel can be sprayed on them.
E. The roller must not turn or reverse on a road that has not yet been compacted and cooled, but it can stop and wait. Correct answers: AC
Regarding the key construction points for rolling hot-mix asphalt mixtures, the correct statements are ( AC ). A. The compaction process consists of three stages: initial compaction, secondary compaction, and final compaction (including shaping).
B. The roller should roll from the center toward the sides, with adjacent rolling zones overlapping by 1/3 to 1/2 of the roller’s width.
C. During rolling, the drive wheels should be facing the paver, using gravity to press the material downward and prevent it from shifting.
D. To prevent the rollers from sticking to the asphalt, diesel can be sprayed on them.
E. The roller must not turn or reverse on a road surface that has not yet been compacted and cooled, but it can stop and wait
B. The roller should roll from the center toward the sides, with adjacent rolling zones overlapping by 1/3 to 1/2 of the roller’s width.
C. During rolling, the drive wheels should be facing the paver, using gravity to press the material downward and prevent it from shifting.
D. To prevent the rollers from sticking to the asphalt, diesel can be sprayed on them.
E. The roller must not turn or reverse on a road surface that has not yet been compacted and cooled, but it can stop and wait