Full-depth reclamation is a type of rehabilitation for pavement surfaces that involves removing distressed pavement and then blending it together with an existing stone base to create a recycled base for new asphalt surfaces. The process entails uniformly pulverizing and blending together the full flexible pavement section along with a predetermined portion of underlying materials. This produces a homogenous stabilized base course (SBC).
What are the Benefits to Full-Depth Pavement Reclamation?
There are many benefits to full-depth pavement reclamation, including….
Full-depth reclamation offers similar results to reconstruction at a more affordable price point. In some cases, it can reduce costs by as much as 50% by eliminating trucking, off-site processing fees, and additional labor costs.
2. Expedited Schedule
On a time-crunch? This method of pavement rehabilitation can save you time and money. In addition, it may allow you to repair surfaces without completely shutting down roadways or enduring extensive down time. Ultimately this reduces the impact repairs have on users.
3. Longer Lasting Results
Full-depth reclamation offers a more permanent and long lasting solution than other types of pavement repair methods.
4. Flexible Solution
When appropriately designed and executed, FDR offers the flexibility to cross-slope and make profile grade adjustments and corrections. In addition, pavement widening can be accomplished.
5. Eco-Friendlier Solution
Full-depth reclamation is considered one of the cleanest and greenest construction methods available. That’s because it utilizes all existing roadway materials—no matter what condition they are in!
Also, FDR is flexible in the sense it can be applied just about anywhere where flexible pavement surfaces are failing. It is frequently used to upgrade gravel/dirt and cheap-seal roads.
Common Applications for Full Depth Reclamation
Full-depth reclamation is used in a variety of settings, such as:
- Low volume, secondary, or back roads
- Parking lots
- City roadways
- Roads with mid-level traffic volume
- Interstate highways
- Private and regional airports
- Roadways with no curbs or gutters
The Process and Materials:
The process begins with a machine known as a reclaimer or a pulverizer equipped with an 8-foot-wide mandrel cutting wheel with 256 tungsten carbine teeth precisely placed in a staggered pattern. The machine works to cut, mix, and blend existing stone or asphalt. While the water and emulsion injection system adds moisture to reduce dust and create more consistent results. As the pulverizer continues onwards, it leaves behind the material so it is ready for a grader and roller to begin shaping it for elevation and slope.
Standard Equipment Used:
- A motor grader
- Water Truck
Supplemental Equipment Used:
- Dump trucks
- Asphalt distributor
- Bulk pneumatic tankers
- Calibrated spreading units
- Slurry equipment
Methods Used for Full-Depth Reclamation
There are four primary disciplines used for this method of rehabbing surfaces: pulverization, mechanical stabilization, bituminous stabilization, and chemical stabilization. Pulverization is considered the most economical discipline because moisture is the only additional material necessary for securing required density and no stabilizers are required. The right discipline for your project may vary based on several factors.
What About Replacement? Replacing Asphalt Vs. Rehabbing Asphalt
Replacing asphalt surfaces requires removing old materials and disposing of them before applying new materials to the scene. Buying new materials cost money, plus it takes resources and tools to remove and dispose of existing surfaces. Why buy new materials when you don’t have to? You can save big by employing existing materials via full-depth reclamation.
Full-depth pavement restoration removes the hurdles associated with sourcing new materials, as well as the added labor, equipment, and trucking needs employed for replacement. Want to know more or get a quote for your project? Contact us today!