How to Perform a CCPR Project: An INDOT Case Study

The February 2025 Recycling edition of AsphaltPro Magazine delved fully into the State Route 236 project wherein companies within Heritage Research Group (HRG) participated in the successful completion of cold central plant recycling (CCPR) and full-depth reclamation (FDR). Here’s a snapshot of the process.

To minimize disruption, the SR 236 project was executed in phases to accommodate local traffic, which may be a concern for other agencies as well. Each segment followed a multi-step rehabilitation process lasting approximately two months.

Step 1: Get samples and design your mix.

Pavement engineers took samples of the existing roadway material. In a lab, they designed and tested the correct composition of materials to create the new paving mixes.

Step 2: Mill the existing pavement.

The asphalt was milled to a depth of 8 inches, and the RAP was transported to a central processing yard no more than 10 miles from the site, minimizing haul times and emissions.

Step 3: Reclaim and strengthen subbase, if necessary.

The team performed FDR, adding a nominal 3 inches of corrective aggregate to the exposed road base, then pulverizing to a depth of 10 inches and stabilizing with Portland cement.

Step 4: Produce CCPR mix at ambient temperatures.

The RAP was crushed, screened and sized to the required specs before being mixed with a specially formulated, engineered asphalt emulsion in a specially designed mobile mixing plant.

Step 5: Pave it black.

Trucks delivered the CCPR mix back to the job site, where it was laid in two 3-inch lifts using standard paving equipment. A 2-inch HMA lift was applied as the surface course, followed by permanent pavement markings.

Inexpensive Paver Prep for 2025 Success

This month, the toolbox tips have focused on equipment maintenance. One of the most vital machines for your paving operation is, of course, the paver. By taking extra time this winter to clean and shore up the paver, you invest in 2025’s paving season’s success.
The online training course we offer gives an in-depth look at paver maintenance, including a downloadable checklist for paver operators and mechanics to use, but let’s look at some points of concern right now.
  • Check for missing bolts and metal fatigue.
  • Maybe you need to repair or add conveyor belt rubber to the front of the hopper and hopper wings to improve holding capacity.
  • Adding lights to the hopper wings now gives haul truck drivers clear delineation for backing and dumping later.
  • Maybe you need to repair the conveyors in the hopper floor to more efficiently move material.
  • Maybe the flow gates need attention.
  • Give special attention to the auger chamber, as detailed next.
Take a tape measure to the auger chamber. The augers should be no less than one-eighth of an inch thick. If they’ve gotten thin, go ahead and replace them now rather than waiting for them to hinder an asphalt mat later. If they’re wearing unevenly, it’s time for investigation into the way they rotate and the way material flows to them. When in doubt, check with the OEM about components and wear.
Do you have a paving foreman or paver operator who should’ve received this tip? Go ahead and forward it to him or her now and if more folks in your team need to sign up for these tips, the link for that is here.

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Product Gallery: Reliable Asphalt Products Unveils Blend Pro 2.0 Plant Controls at World of Asphalt

Reliable Asphalt Products, Shelbyville, Kentucky, has launched the Blend Pro 2.0 plant controls system from AARC Systems this winter. The company will have information at booth 4702 at World of Asphalt.

For more information, visit reliableasphalt.com/

Product Gallery: CWMF Showcases Honey Badger RAP Crusher at World of Asphalt

CWMF Corp., Waite Park, Minnesota, offers the Honey Badger RAP Crusher, which you can see on display at World of Asphalt in booth 6525 in St. Louis this March. Check out these features of the Honey Badger Hammer Mill:

  • Bi-directional operation (forward or reverse)
  • Dual, hardened Anvil bars
  • Metal trap area (mill teeth)
  • Hydraulic 2-way power pack load chute operation (up and down)
  • Design is conducive to perform maintenance
  • AR450 internal wear components
  • Half section AR450 side plates (replace the half that wears out more)
  • 60HP drive TEFC drive motor
  • Hood latches on drive inspection access
  • 14 Hammer rotor design
  • Premium Carbide impregnated casted hammers
  • Equipped with 1” grate
  • Other grate sizes available upon request
  • Relieved grate design for anti-plugging
  • Spherical roller bearings

For more information, call (877) 457-3938 or visit cwmfcorp.com.

Product Gallery: Superior Industries Opens New Crushing Manufacturing Facility in Morris, MN

Superior Industries Inc., Morris, Minnesota, announced in November 2024 the opening of its new crushing manufacturing facility in its hometown during a ribbon-cutting ceremony. The new facility, dedicated to producing jaws and cones, will increase Minnesota’s crusher production capacity by 50%. This expansion enhances support for dealers and producers across North America’s aggregates and mining industries. Superior’s impact crushers, including vertical shaft impactors and horizontal shaft impactors, will continue to be produced at the company’s other crusher facility in Belen, New Mexico. Additionally, Superior’s global network includes crusher manufacturing sites in South America and Asia, broadening its reach to serve international markets.

“This new facility means more opportunities for everyone connected to Superior—from our dealers and producers to our team members and local communities,” said Jason Adams, president of Superior Industries. “With more capacity and smoother operations, we’re able to stay true to our purpose of serving others by providing products that help our partners succeed!”

The facility features an integrated hydraulics assembly area, an inline test zone and expanded parts warehousing to support the growing need for critical components.

 

Product Gallery: Rotochopper Celebrates Manufacturing Month with Community Outreach and Career Spotlights

In October 2024, Rotochopper celebrated Manufacturing Month by showcasing the innovations and craftsmanship that drive our industry. Through events with local schools and community outreach, the company highlighted exciting career opportunities in manufacturing and emphasized the potential of this evolving industry.