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What are the properties of Asphalt

blacktop-paving

When considering asphalt concrete mixtures, each mixture needs specific properties to meet recommended safety guidelines. Whether for blacktop paving or other construction projects, reach the required mix properties in stability, durability, flexibility, fatigue resistance, skid resistance, impermeability, and workability. Read the specifics below.

The Importance of Stability

Stable paving will remain smooth and not alter in shape regardless of loading and stress. This is essential for blacktop paving. A balance between internal friction and cohesion increases stability. This will help maintain shape under heavy traffic.

Maintaining Durability and Impermeability

Pavement withstands considerably stressed due to traffic, weather, and moisture. To maintain durability, use maximum binder content and a denser gradation of stripping resistant aggregate. This helps reduce the passage of moisture, water, and air through the pavement.

Workability and Flexibility Are Key

The more workable the mixture is, the easier it is to place and shape. Ensure stability to avoid issues with workability. If a mix is too easy to work, then the resultant mixture can be unstable. This “tender mix” might have too much moisture, not enough mineral filler, or too much sand. Flexibility determines if the pavement will resist cracking. All asphalt pavement needs flexibility to avoid cracking, potholes, and other damage. 

Fatigue Resistance

Constant heavy traffic leads to bending in the pavement. If the pavement has not been mixed properly or exhibits fatigue, cracking results. Aging and poor mixing contribute to poor fatigue resistance.

The Importance of Skid Resistance

For high traffic areas, skid resistance helps tired grip the surface and avoid slipping and skidding. Especially important in areas with high precipitation, skid resistance prevents accidents and injury. Avoid smooth surfaces. Rough surfaces have more skid resistance.

Follow all mix requirements to maintain these key desirable properties. If you have questions about paving, asphalt, and concrete, feel free to contact our experienced professionals today. We are ready to help you with your project.

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