Whether you’re managing a commercial property, HOA, or planning a private project, understanding common paving terms can help you make smart, informed decisions.
At GPM, we believe in transparency, and that starts with education. Below is a simple breakdown of the most commonly used terms in the asphalt and concrete paving world.
Glossary of Paving Terms
Asphalt Overlay
A new layer of asphalt is applied over existing pavement to restore surface quality without a full replacement. Best for structurally sound pavement showing signs of surface wear.
Base Layer
The foundational layer beneath asphalt or concrete that provides strength and stability. A strong base means your pavement will last longer.
Crack Sealing
Crack sealing is a preventative maintenance process that involves filling surface cracks with a specialized sealant to prevent water intrusion and further deterioration.
Chip Seal
Chip sealing is a cost-effective surface treatment where a thin layer of asphalt emulsion is sprayed, followed by crushed stone that is rolled into place. Often used on rural roads and private drives.
Concrete Flatwork
Any concrete poured on a horizontal plane, like sidewalks, driveways, patios, and curbs.
Pulverize & Pave
Pulverize & Pave is a process that pulverizes and recycles the existing pavement and base layers, then re-compacts and paves over the material to create a brand-new surface.
Line Striping
The painted pavement markings on parking lots or roads that are used for traffic flow, safety, and compliance. Faded striping is a major safety concern.
Pavement Maintenance
Ongoing upkeep like crack sealing, sealcoating, and patching to extend the life of asphalt or concrete and reduce long-term costs.
Pulverizing
Grinding up existing asphalt and base material onsite for reuse. Often, the first step in FDR or stabilization projects.
Resurfacing
Removing the top layer of asphalt and replacing it with new asphalt. A cost-effective alternative to full replacement.
Mill & Fill
A two-part process where the top layer of asphalt is milled (removed) and then replaced with fresh asphalt. This restores the surface without disturbing the base layer, making it an effective and cost-efficient option for roads or lots with surface-level damage.
Sealcoating
Sealcoating is a protective coating applied over asphalt to protect against oxidation, water, and UV damage. Enhances appearance and prolongs pavement life.
Subgrade
The native soil beneath a pavement structure. It must be stable and properly compacted to support the load above.
Trip Hazard Repair
Leveling uneven concrete slabs to eliminate safety risks and ADA violations — commonly used on sidewalks and walkways.
Have Questions?
If you have any questions about pavement or are ready to talk about your paving project, contact the top company in Central and Southern California. GPM will work hard to ensure your pavement is replaced with something stronger, all while reducing our carbon footprint. For more information, contact GPM today for a free estimate!