Asphalt milling removes a controlled depth of an existing pavement surface so crews can correct ruts, improve drainage, prepare for an overlay, or remove deteriorated material. The process creates a textured, level base for new asphalt while preserving as much of the underlying structure as possible. Reclaimed millings can also be collected for reuse in suitable pavement applications.
How long does it take asphalt millings to harden?
Asphalt millings do not harden in the same way as freshly placed hot-mix asphalt because they are not reheated and compacted with new binder. When spread and compacted, traffic and warm weather can help the reclaimed binder bind particles over several weeks or months. Final firmness depends on milling gradation, compaction, temperature, drainage, and the amount of remaining asphalt binder.
What are the two types of milling?
In pavement work, the most common distinction is cold milling and hot milling. Cold milling mechanically removes asphalt at ambient temperature using a rotating drum or planer, making it the standard method for roadway rehabilitation. Hot milling heats the pavement before removal and is used less often for specialized recycling or surface-treatment applications. Milling can also be classified by depth, such as surface or full-depth removal.
What makes Rolling Wedge different from carbide picks?
Rolling Wedge tools use a rolling-wedging-lifting action instead of the repeated impact associated with carbide picks. The teeth roll across the surface, wedge into the material, and lift cuttings away. This approach is designed to reduce bounce, vibration, excessive heat, and equipment stress while producing a more controlled milling result. It also helps reduce the frequency of tool changes and related downtime.
Can Rolling Wedge tools mill asphalt and concrete?
Yes. Rolling Wedge technology is designed for hard-surface applications, including asphalt, concrete, and mixed-material surfaces. Its cutting action can mill asphalt and concrete in a single pass without requiring a tool swap, which is particularly useful on rehabilitation projects where pavement transitions, patches, or composite surfaces are present. Compatibility and setup should be confirmed for the specific machine and milling application.
Can I upgrade my existing milling equipment?
Rolling Wedge Milling Tools are intended to upgrade compatible skidsteer-mounted planer attachments and large milling equipment rather than require an entirely new machine. The tools fit rubber-tire and tracked skidsteer planers as well as heavy-duty equipment, including Roadtec machines. Installation requirements depend on the existing drum, mounts, and intended milling conditions. Technical specifications and installation information are available upon written request.
How often do Rolling Wedge tools need replacement?
Rolling Wedge states that its Milling Tools typically need replacement every one to three months, compared with as often as twice a week for traditional carbide picks. Actual service life varies with the material being milled, operating conditions, machine setup, milling depth, and daily production volume. Regular inspection remains important to maintain cutting quality, protect the drum, and plan maintenance before performance declines.
How can I estimate savings from a milling upgrade?
Start by comparing current carbide-pick costs, replacement labor, machine downtime, maintenance requirements, and expected production against a Rolling Wedge setup. Rolling Wedge provides an online milling cost comparison tool to help operators evaluate potential return on investment. Include the value of smoother operation, reduced wear, and fewer interruptions—not only the purchase price of replacement tools—when assessing total operating cost.