High Viscosity Asphalt Additive for Porous and High-Performance Asphalt Pavements
Introduction: What Is High Viscosity Asphalt Additive?
High Viscosity Asphalt Additive is a polymer-based asphalt modifier designed to significantly increase the viscosity, cohesion, bonding strength, and stability of asphalt mixtures.
It is particularly important for porous asphalt and permeable pavement, where the asphalt binder needs sufficient viscosity and adhesion to hold coarse aggregate together while maintaining the designed air void structure.
Go Green High Viscosity Asphalt Additive, also known as GHVAA, is a light-yellow granular modifier compounded from polymers. It is designed for drainage pavements, permeable asphalt, heavy traffic roads, highways, airport runways, and other high-performance asphalt applications.
How Does High Viscosity Asphalt Additive Work?
During high-temperature mixing, the polymer modifier softens and combines with asphalt and aggregate.
The additive fills and interlocks within the aggregate skeleton, helping restrict the movement of mineral particles and improve mixture stability.
Its polymer components can also form a three-dimensional reinforcing structure within the asphalt mixture, increasing strength and helping the mixture resist deformation.
After cooling, the modified asphalt provides a strong and elastic bonding interface around the aggregate particles.
These combined effects help improve:
Asphalt viscosity
Aggregate adhesion
Mixture cohesion
Structural stability
Rutting and deformation resistance
Pavement durability
Advantages of High Viscosity Asphalt Additive
Higher Asphalt Viscosity
The additive significantly increases the viscosity of asphalt, helping prevent binder drain-down and improve the stability of open-graded asphalt mixtures.
Stronger Aggregate Bonding
Improved adhesion between asphalt binder and aggregate helps maintain the integrity of porous and permeable pavement.
Improved High-Temperature Stability
The polymer reinforcement helps asphalt mixtures resist deformation under high temperatures and repeated traffic loading.
Suitable for Porous Asphalt
High Viscosity Asphalt Additive is especially suitable for open-graded and porous asphalt mixtures where high binder viscosity is required.
Improved Pavement Durability
By improving cohesion, bonding strength, and mixture stability, the additive can contribute to longer-lasting high-performance asphalt pavement.
Applications of High Viscosity Asphalt Additive
Go Green High Viscosity Asphalt Additive can be used for:
Porous asphalt pavement
Permeable asphalt pavement
Drainage pavement
Heavy traffic asphalt roads
Highways
Airport runways
High-grade asphalt pavement
White-to-black pavement conversion projects
It is particularly suitable for pavement designs requiring high binder viscosity, strong aggregate adhesion, and good structural stability.
How to Use High Viscosity Asphalt Additive
Dry Mixing Process
The additive can be directly added together with the dried aggregate into the asphalt mixing drum.
The recommended addition rate is approximately 6‰-8‰ of aggregate mass.
After approximately 10 seconds of dry mixing, base asphalt and mineral powder are added and mixed for approximately 40 seconds.
Wet Mixing Process
The modifier can also be added directly into a stirred asphalt storage tank.
The recommended modifier-to-asphalt mass ratio is approximately 10-14:90-86. The mixture is continuously stirred for approximately 2-4 hours at 180-190°C before use.
The finished high-viscosity asphalt is generally heated to approximately 170-175°C
The recommended addition rate is approximately 6‰-8‰ of aggregate mass.
For either process, aggregates should be properly dried and mixing should achieve uniform coating without segregation or clumping.
The above values are based on Go Green's current GHVAA technical specifications. Actual dosage and production parameters should be confirmed through project-specific asphalt mixture testing.
Why Choose Go Green High Viscosity Asphalt Additive?
Go Green High Viscosity Asphalt Additive provides a practical polymer modification solution for asphalt producers and road contractors who need higher binder viscosity and stronger aggregate bonding.
Key benefits include:
Polymer-based granular formulation
High asphalt viscosity
Strong aggregate adhesion
Improved mixture cohesion
Better resistance to deformation
Suitable for porous and permeable asphalt
Suitable for heavy traffic pavement
Compatible with dry and wet mixing processes
Go Green also provides anti-rutting additives, anti-stripping additives, asphalt rejuvenators, warm mix additives, and other asphalt performance modifiers.
Frequently Asked Questions About High Viscosity Asphalt Additive
What is High Viscosity Asphalt Additive used for?
It is mainly used to increase asphalt viscosity and improve the bonding, cohesion, and stability of asphalt mixtures. It is particularly suitable for porous, permeable, drainage, and heavy-duty asphalt pavement.
Why is high viscosity asphalt important for porous pavement?
Porous asphalt contains a relatively open aggregate structure. Higher binder viscosity and stronger aggregate bonding help reduce binder drain-down and maintain the stability of the pavement structure.
What is the recommended dosage?
For the direct dry mixing process, the recommended dosage is approximately 6‰–8‰ of aggregate mass . The optimum dosage should be confirmed through asphalt mixture testing.
Can High Viscosity Asphalt Additive be used for heavy traffic roads?
Yes. It can be used for heavy traffic asphalt pavement, highways, airport runways, and other high-performance pavement applications.
Can the additive be directly added to an asphalt mixing plant?
Yes. GHVAA can be directly added with dried aggregate during the dry mixing process, providing a convenient method for asphalt mixture production.
What is the difference between High Viscosity Asphalt Additive and Anti Rutting Asphalt Additive?
High Viscosity Asphalt Additive mainly focuses on increasing asphalt viscosity, aggregate adhesion, and mixture cohesion, making it especially suitable for porous and permeable asphalt.
Anti Rutting Asphalt Additive is primarily designed to improve resistance to rutting and permanent deformation. The appropriate product should be selected according to the specific pavement performance requirements.
Conclusion
High Viscosity Asphalt Additive is a polymer-based modifier designed to improve asphalt viscosity, aggregate bonding, mixture cohesion, and pavement stability.
Go Green GHVAA is particularly suitable for porous asphalt, permeable pavement, drainage pavement, heavy traffic roads, highways, airport runways, and white-to-black pavement projects.
With both dry and wet mixing options, High Viscosity Asphalt Additive provides asphalt producers and contractors with a practical solution for developing stronger and more durable high-performance asphalt mixtures.
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