Applications
Road Material
Safer, Longer-Lasting
Road Surfaces.
Government agencies and private road owners, including municipalities and state and federal departments of transportation, face growing pressure to extend pavement life, improve safety, and control maintenance costs amid increasing traffic volumes and limited budgets. Stalite Lightweight Aggregate delivers proven performance in asphalt surface treatments and maintenance applications, providing superior skid resistance, long-term durability, and measurable cost efficiencies without compromising constructability or roadway performance.

Lightweight Aggregate
for Road Materials
for Road Materials
Across the United States, road networks are subjected to increasing traffic loads, environmental exposure, and aging pavement structures. Agencies and owners must maintain safe, reliable road surfaces while working within tight schedules, weight restrictions, and limited budgets. Traditional aggregates can polish over time, contribute to stone loss, and increase hauling and placement costs.
Lightweight aggregate produced with Stalite expanded slate offers a proven alternative. Its lower unit weight provides greater surface coverage per ton, reducing transportation and handling costs while allowing trucks and paving equipment to operate at full capacity without exceeding legal weight limits.
Beyond logistics, Stalite delivers long-term roadway performance. Its rough, angular surface resists polishing, maintains skid resistance over time, and bonds effectively with asphalt binders and traffic paint. The result is safer, cleaner, and more durable road surfaces throughout their service life.
Key Benefits

Surface texture comparison showing polished granite aggregate versus Stalite Lightweight Aggregate maintaining angular texture for long-term skid resistance.
Field-Proven Performance in High-Traffic Conditions
Stalite Lightweight Aaggregate has a long track record in demanding roadway applications, including use by state departments of transportation on high-traffic corridors such as North Carolina Highway 421, with average daily traffic of approximately 14,000 vehicles. In these applications, Stalite has performed successfully as a ride surface without requiring a blotting seal, streamlining construction while delivering durable, long-lasting results.
Its naturally darker appearance blends seamlessly with conventional asphalt, producing a uniform surface that meets both performance and aesthetic expectations.
Cost-Effective Crack Sealing and Surface Preservation
Surface cracks allow moisture intrusion that accelerates pavement deterioration and structural damage. Traditional skin patching methods can leave loose aggregate that shortens service life and damages vehicles.
Stalite’s rough texture bonds tightly with asphalt emulsions, creating an effective and economical seal without loose debris. Its lightweight particles remain in place under traffic, providing long-term crack sealing that performs reliably and maintains a clean roadway appearance.
Common Uses
- Asphalt surface treatments
- Scrub seals and slurry seals
- Portable patch paving operations
- Hot mix asphalt
- Preventive maintenance programs
- Roadway rehabilitation and preservation projects
With decades of proven use by departments of transportation, including North Carolina, South Carolina, and Georgia, Stalite is considered a preferred material in many roadway maintenance and safety programs.




