Advanced Road Reclaimer Technology: How to Improve Road Rehabilitation Efficiency

8 Min read

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Karin Ohman

Software Engineer, Boom & Bucket

April 30, 2023

Road rehabilitation projects can involve significant material, transportation, labor, and equipment costs. Advanced road reclaimer technology offers contractors and agencies another way to approach pavement rehabilitation by processing existing roadway materials in place rather than relying entirely on conventional removal and replacement.

A road reclaimer pulverizes existing pavement and, depending on the project, blends it with underlying material, water, aggregate, or stabilizing agents. This makes reclaimers useful for full-depth reclamation (FDR), pavement recycling, and soil stabilization applications.

When properly designed and executed, in-place reclamation can reuse existing materials, reduce hauling requirements, and create an improved base for a new roadway surface. The Federal Highway Administration (FHWA) identifies full-depth reclamation as a pavement rehabilitation method that treats the asphalt pavement and a predetermined amount of underlying material to produce a stabilized base course.

What Is a Road Reclaimer?

A road reclaimer is heavy equipment designed to pulverize and process existing pavement and underlying materials for reuse in roadway construction or rehabilitation.

Unlike a conventional cold planer, which primarily removes pavement to a specified depth, a reclaimer can process material in place as part of a reclamation or stabilization operation.

Road reclaimers can be used for applications such as:

  1. Full-depth reclamation

  2. Pavement rehabilitation

  3. Soil stabilization

  4. Road reconstruction

  5. Base-course improvement

  6. Asphalt recycling

  7. Road widening and related infrastructure work

The exact process depends on the pavement structure, material properties, project specifications, and stabilization requirements.

How Does a Road Reclaimer Work?

Modern road reclamation typically involves several coordinated steps.

1. Pulverize the Existing Material

The reclaimer's cutting rotor breaks down the existing pavement and, where specified, a portion of the underlying base material.

2. Introduce Water or Stabilizing Agents

Depending on the project design, water and stabilizing materials such as asphalt emulsion, cement, lime, or other approved additives may be introduced during processing.

3. Mix the Material

The machine blends the processed pavement and base materials to create a more uniform reclaimed mixture.

4. Shape the Reclaimed Base

After processing, grading equipment shapes the material to the required elevation, cross slope, and roadway profile.

5. Compact the Material

Compaction equipment follows the reclamation operation to achieve the required density.

6. Apply the New Surface

Once the reclaimed base meets project requirements, a new pavement or wearing course can be applied.

FHWA describes FDR using this same general sequence: pulverization, additive introduction, shaping, compaction, and application of a surface or wearing course.

How Advanced Road Reclaimer Technology Improves Efficiency

Modern reclamation equipment can improve productivity through better control of material processing and machine operation.

Depending on the machine and application, technology may include:

  1. Electronic machine controls

  2. Automated depth control

  3. Water and additive metering systems

  4. Rotor and cutting-system improvements

  5. Machine monitoring

  6. Telematics and production data

  7. Grade-control integration

  8. Operator-assistance systems

These technologies can help operators maintain more consistent processing depth and material mixing. However, equipment technology is only one part of project efficiency. Material conditions, machine setup, operator skill, site preparation, traffic management, and the overall reclamation design also affect production.

For contractors, the goal is not simply to operate the reclaimer faster. It is to create a repeatable reclamation process that produces material meeting the project's specifications.

7 Benefits of Using Road Reclaimers

1. Reuse Existing Pavement Materials

One of the biggest advantages of reclamation is the ability to reuse material already present on the roadway.

Instead of removing all existing pavement and transporting it away, FDR can process the existing pavement and a predetermined amount of underlying material in place.

2. Reduce Material Hauling

Because material can be processed in place, some projects may require less hauling of old pavement away and fewer deliveries of replacement materials.

This can simplify logistics and potentially reduce transportation-related costs.

3. Improve Rehabilitation Efficiency

A reclaimer combines pavement processing with material mixing in a single operation. This can reduce the number of separate steps involved in certain rehabilitation projects.

The actual productivity advantage depends on project conditions, including pavement thickness, material type, haul distances, and equipment configuration.

4. Support Full-Depth Reclamation

Road reclaimers are an important component of FDR operations.

FHWA notes that FDR can address a range of pavement distresses while providing structural improvements to the pavement base and reducing the need to haul and dispose of existing materials.

5. Reduce Demand for Virgin Materials

Reusing suitable existing pavement and base materials can reduce the amount of new aggregate or other materials required for some projects.

Additional aggregate may still be necessary when the existing material does not provide the required gradation, depth, or performance characteristics.

6. Support More Sustainable Construction

Material reuse can reduce waste and conserve aggregate and asphalt resources. FHWA identifies resource conservation and reduced hauling as potential advantages of pavement recycling.

However, environmental benefits vary by project and should be evaluated based on the complete construction process.

7. Improve Project Logistics

Keeping more material on site can simplify project logistics, particularly where disposal sites, aggregate sources, or long haul routes create challenges.

That doesn't mean reclamation is always the fastest or least expensive option. Engineers and contractors should evaluate pavement condition, materials, specifications, and production requirements before selecting the method.

Road Reclaimer vs. Cold Planer

Road reclaimers and cold planers both process existing pavement, but they serve different primary purposes.

Choosing between the two depends on the project's engineering requirements rather than simply machine size or production capacity.

When Should You Use a Road Reclaimer?

A road reclaimer may be appropriate when a roadway requires more than surface-level repairs.

Potential applications include:

  1. Widespread pavement cracking

  2. Rutting and deformation

  3. Weak or deteriorated base materials

  4. Repeated pavement failures

  5. Road reconstruction

  6. Full-depth reclamation

  7. Soil stabilization

  8. Road widening projects

  9. Projects where existing materials can be reused

FHWA notes that FDR can address multiple pavement distresses and provide structural improvements, particularly in the base.

However, not every roadway is a candidate for reclamation. Engineers should evaluate existing pavement conditions, subgrade characteristics, drainage, material properties, traffic requirements, and the required final pavement structure.

How to Choose the Right Road Reclaimer

Before purchasing or renting a reclaimer, evaluate the machine against the project rather than focusing only on horsepower.

Consider:

Working width: A wider rotor can cover more roadway per pass, depending on project requirements.

Maximum processing depth: Verify that the machine can achieve the required reclamation depth.

Rotor configuration: Cutting tools and rotor design affect how effectively the machine processes the target material.

Water and additive systems: If stabilization is part of the project, confirm that the machine supports the required application system.

Power and traction: Match machine capability to material conditions, grades, and production requirements.

Operator controls: Modern controls can help maintain consistent depth and processing.

Transport requirements: Consider machine dimensions, weight, and how frequently it must move between jobsites.

Serviceability: Access to wear components and routine maintenance points can affect long-term operating costs.

What to Inspect When Buying a Used Road Reclaimer

A used road reclaimer can provide significant value, but condition matters.

Before purchasing, inspect:

  1. Engine performance

  2. Hydraulic systems

  3. Hydraulic cylinders

  4. Cutting rotor

  5. Cutting teeth and holders

  6. Conveyor or material-handling components, where equipped

  7. Water and additive systems

  8. Tires or tracks

  9. Steering and driveline

  10. Frame and articulation points

  11. Electrical and electronic controls

  12. Hour meter and operating history

  13. Signs of structural damage

  14. Maintenance and service records

Pay particular attention to the rotor and cutting system because these components experience substantial wear during reclamation work.

Also consider whether replacement parts and service support are readily available for the machine's make and model.

Frequently Asked Questions

What is a road reclaimer used for?

A road reclaimer is used to pulverize and process existing pavement and underlying materials for roadway rehabilitation, full-depth reclamation, soil stabilization, and related construction applications.

How does a road reclaimer work?

A reclaimer uses a rotating cutting system to pulverize existing pavement and may mix the processed material with water, aggregate, or stabilizing agents. The reclaimed material is then shaped and compacted before a new surface is installed.

What is full-depth reclamation?

Full-depth reclamation is a pavement rehabilitation process that treats the existing asphalt pavement and a predetermined amount of underlying material to create a stabilized base.

Is a road reclaimer the same as a cold planer?

No. A cold planer primarily removes pavement, while a road reclaimer is designed to process and recycle pavement and underlying materials in place for applications such as FDR and stabilization.

Can road reclaimers reduce construction costs?

They can, depending on the project. Reusing existing materials and reducing some hauling and material requirements may lower costs, but actual savings depend on pavement conditions, material availability, haul distances, equipment costs, and project design.

Are used road reclaimers worth buying?

A used road reclaimer can be a cost-effective fleet addition when its condition, remaining component life, service history, and capabilities match the contractor's work. A thorough inspection should be completed before purchase.

Find the Right Used Road Reclaimer for Your Fleet

The right reclamation equipment can help contractors tackle pavement rehabilitation while making better use of existing roadway materials.

If you're evaluating equipment for an upcoming project, start by identifying the required reclamation depth, working width, material conditions, stabilization method, and expected production rate.

Planning a project? Learn how road reclaimers fit into full-depth reclamation and pavement rehabilitation.

Comparing equipment? Review available road reclamation equipment and compare machine specifications, configurations, hours, and condition.

Ready to buy? Explore used road reclaimers from Boom & Bucket to find equipment that fits your project requirements and fleet strategy.

Karin Ohman is a full-stack software engineer who worked for Boom and Bucket.

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