Asphalt
Premium Asphalt Solutions for Your Construction Needs
Our high-quality Asphalt products are engineered to deliver exceptional performance in various climate conditions. Designed for durability and cost-effectiveness, our Asphalt solutions meet international quality standards for road construction and paving projects.
Key Features of Our Asphalt Products:
- Superior resistance to rutting and cracking
- Excellent load-bearing capacity
- Enhanced skid resistance for improved safety
- Weather-resistant composition
- Environmentally friendly production process
Asphalt Technical Specifications
Physical Properties
| Property | Specification | Test Method |
|---|---|---|
| Penetration (25°C, 100g, 5s) | 60-70 dmm | ASTM D5 |
| Softening Point (Ring & Ball) | 46-54°C | ASTM D36 |
| Ductility (25°C, 5cm/min) | 100+ cm | ASTM D113 |
| Flash Point (Cleveland Open Cup) | 230°C min | ASTM D92 |
| Specific Gravity (25°C) | 1.01-1.06 | ASTM D70 |
Asphalt Application Guidelines
For optimal results with our Asphalt products, follow these application recommendations:
Installation Parameters
- Minimum compaction temperature: 275°F (135°C)
- Optimal paving temperature range: 300-325°F (149-163°C)
- Recommended compacted thickness: 2-4 inches (5-10 cm) for surface courses
- Required compaction effort: 92-96% of theoretical maximum density
- Curing time before traffic: 24 hours minimum
Asphalt FAQ Common Questions
What is the typical lifespan of Asphalt pavement?
The lifespan of Asphalt pavement depends on several factors including traffic volume, climate conditions, and proper maintenance. Under normal conditions with average traffic (10,000-20,000 vehicles per day), properly installed Asphalt pavement typically lasts 15-20 years. With periodic maintenance such as seal coating every 3-5 years and crack filling as needed, the lifespan can often be extended to 25 years or more. In colder climates with freeze-thaw cycles, the lifespan may be slightly shorter unless special polymer-modified Asphalt mixes are used.
How does Asphalt compare to concrete in terms of cost and performance?
Asphalt generally has a lower initial installation cost compared to concrete, typically 20-30% less expensive per square foot. Asphalt also offers faster installation and can be opened to traffic within 24 hours, while concrete requires longer curing times. In terms of performance, Asphalt provides better skid resistance in wet conditions and is more flexible, making it better suited for areas with ground movement or freeze-thaw cycles. Concrete typically lasts longer (30+ years) but is more expensive to repair. Many municipalities choose Asphalt for its cost-effectiveness and easier maintenance, while concrete may be preferred for specific high-stress applications.
What maintenance does Asphalt pavement require?
Proper Asphalt maintenance includes several key activities: Sealcoating every 3-5 years protects the surface from oxidation and water penetration. Crack sealing should be performed annually to prevent water from entering the base layers. Potholes should be repaired promptly using hot-mix Asphalt for permanent repairs. Routine cleaning to remove debris and proper drainage maintenance helps prevent water damage. For commercial parking lots, periodic infrared repairs can address localized damage. With this maintenance regimen, Asphalt pavement can maintain excellent condition throughout its service life while preventing costly reconstruction.
Asphalt Aggregate Gradation
The following table shows the standard gradation for our premium Asphalt mixes:
| Sieve Size | % Passing (Surface Course) | % Passing (Base Course) |
|---|---|---|
| 1" (25.0 mm) | 100 | 100 |
| 3/4" (19.0 mm) | 90-100 | 90-100 |
| 1/2" (12.5 mm) | 85-95 | 76-90 |
| 3/8" (9.5 mm) | 75-85 | 65-85 |
| No. 4 (4.75 mm) | 55-70 | 45-65 |
| No. 8 (2.36 mm) | 35-50 | 30-50 |
| No. 200 (0.075 mm) | 4-7 | 3-7 |
Asphalt Mix Design Properties
Our standard Asphalt mix designs meet or exceed all relevant specifications:
| Property | Surface Course | Intermediate Course | Base Course |
|---|---|---|---|
| Asphalt Content (% by weight) | 5.0-6.5% | 4.5-5.5% | 4.0-5.0% |
| Air Voids (%) | 3.5-5.0% | 3.5-5.0% | 3.0-5.0% |
| VMA (%) | 14.0 min | 13.0 min | 12.0 min |
| VFA (%) | 65-75 | 65-78 | 70-80 |
| Stability (lbs) | 1800 min | 1600 min | 1400 min |
| Flow (0.01 in) | 8-16 | 8-18 | 8-20 |