MILLING & ASPHALT OVERLAY CONTRACTOR
A+ Milling and Asphalt Overlay Services
Milling and Asphalt Overlay is a resurfacing technique used to restore worn-out asphalt surfaces, such as roads, parking lots, and driveways. This process removes the top layer of damaged asphalt (milling) and applies a new layer called an asphalt overlay to create a smooth, durable surface without needing a full-depth reconstruction. Here’s a breakdown of the key services involved in milling and asphalt overlay:
- Surface Evaluation: Inspecting the current pavement for cracks, potholes, rutting, and other damage to determine if milling and overlay is suitable.
- Depth Measurement: Determining the thickness of the existing asphalt and deciding on the appropriate milling depth to remove damaged layers without impacting the sub-base.
- Traffic Control Planning: Setting up traffic management strategies to ensure the safety of workers and minimize disruption during the milling and overlay process.
- Cold Milling: Using a milling machine to remove a specific depth of the asphalt surface. Cold milling creates a rough texture that helps the new asphalt layer bond effectively with the existing surface.
- Edge Milling: Milling along the edges of the pavement, curbs, and structures to create a smooth transition between the old and new asphalt surfaces.
- Hauling and Disposal of Milled Material: Collecting and removing milled asphalt. The material is often recycled and used in other paving projects.
- Sweeping and Blowing: Clearing any loose debris, dust, and small particles from the milled surface to ensure proper adhesion of the overlay.
- Tack Coat Application: Applying a layer of tack coat (a sticky liquid asphalt) to the milled surface. This helps the new asphalt layer adhere to the old surface, preventing delamination or slippage.
- Hot-Mix Asphalt Application: Spreading and laying a fresh layer of hot-mix asphalt on top of the milled surface. The new layer is typically 1-1/2 to 2 inches thick, depending on the project's requirements and expected traffic load.
- Leveling Course (if needed): Adding a leveling course in areas with uneven surfaces to smooth out the surface before the final overlay layer.
- Initial Rolling (Breakdown Rolling): Using a smooth drum vibratory roller to compact the asphalt while it’s still hot. This initial compaction bonds the asphalt particles together and provides a strong base.
- Intermediate and Finish Rolling: Further compacting with different rollers (such as pneumatic and steel rollers) to achieve a smooth, dense finish. This process removes surface irregularities and helps achieve the desired density.
- Sealing the Edges and Joints: Applying joint sealer along the edges where the new overlay meets the existing surface to prevent water infiltration and strengthen the bond.
- Smoothing and Level Checks: Ensuring the overlay surface is level and free of imperfections. Adjustments are made as needed to achieve a consistent surface.
- Re-striping: Reapplying lane lines, parking space markers, crosswalks, and any other necessary pavement markings on the newly overlaid surface.
- Reflective Markers: Installing reflective markers where needed, especially for roadways and parking lots, to improve nighttime visibility and safety.
- Site Clean-Up: Removing equipment, signs, traffic control barriers, and any debris from the milling and overlay process.
- Final Inspection and Quality Assurance: Inspecting the newly overlaid surface for smoothness, compaction, and proper adhesion. This step ensures the asphalt meets the specifications for thickness, density, and overall quality.
- Cost-Effective: By reusing the existing base, this process is often less expensive than a full-depth reconstruction.
- Extended Pavement Life: Milling and overlay can add many years to the pavement’s lifespan.
- Smooth and Safe Surface: The overlay provides a fresh, smooth surface, improving ride quality and reducing the risk of accidents.
- Environmentally Friendly: Recycled milled asphalt (RAP) is often used in other projects, reducing waste and promoting sustainability.
- Minimal Disruption: This process is typically faster than a complete pavement replacement, minimizing disruption to traffic and access.
Milling and Asphalt Overlay services provide a durable and efficient way to renew asphalt surfaces, making them ideal for high-traffic areas that require a smooth, resilient, and visually appealing surface. Ready to begin your rejuvenation project, get a free quote here.
