Page 11 - Structural Highway Design_Neat

5.5.2. Vibratory Steel Wheel Roller
5.5.3. Pneumatic Tire Rollers

In summary, pneumatic tire rollers offer a slightly different type of compaction
than steel wheel rollers. The arrangement of multiple tires on both axles serves to
both compress and knead the mat, which may or may not be advantageous over
steel wheel rollers.

5.5.4. Roller Variables

There are several variables associated with rollers that can be adjusted from job to
job. These variables are:

• sequence and number of rollers
• roller speed
• number of roller passes over a given area of the mat
• location at which each roller works

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