Here is the most standard on-site configuration, suitable for both exams and practical operation:Three-stage rolling of asphalt pavement → matching rollers and operation methods, memorize once and for all.

Rollers for Initial, Intermediate and Final Rolling of Asphalt Pavement

1. Initial Rolling

• Roller: Tandem-drum roller (static compaction)

• Function: Stabilize the mixture, level the surface, prevent displacement

• Method: Static compaction, no vibration

• Purpose: Stabilize the newly paved asphalt mixture to avoid shifting.

2. Intermediate Rolling (most critical, main compaction stage)

Standard combination:

1. Tandem-drum roller (with vibration)

2. Pneumatic-tired roller (kneading and void sealing)

• Function: Improve density, eliminate voids, enhance water resistance

• Intermediate rolling is the key step determining pavement quality.

3. Final Rolling

• Roller: Tandem-drum roller (static compaction)

• Function: Finish the surface, eliminate wheel marks, improve smoothness

• Method: Static compaction, no vibration

One-sentence memory formula

Initial rolling: static tandem-drumIntermediate rolling: vibrating tandem-drum + pneumatic-tiredFinal rolling: static tandem-drum.