Control Strip 300-400 FT: Which describes the work performed in this segment?

• A. Only the finish roller changes passes
• B. All rollers stop rolling
• C. Set all rollers to 2 passes
• D. Use the determined breakdown passes to set the intermediate roller passes while the finish roller continues 3 passes

Answer: (A)

In a control strip, the goal is to fine-tune the surface finish without altering the deeper compaction already achieved. By the time you reach the 300–400 ft segment, the breakdown and intermediate rollers have established the internal density and mat structure. The finish roller is then used to control the surface quality—texture, uniformity, and final smoothing—so you vary only the finish passes to determine how many passes are needed to meet the surface criteria. This is why the correct description is that only the finish roller changes passes. The other options would require changing deeper compaction patterns, stopping rollers, or fixing a specific set of passes for multiple rollers, which is not how the control strip is intended to operate.