What is Asphalt Grade Gilsonite?

Asphalt Grade Gilsonite, also known as Uintaite or Natural asphalt, is a unique additive that is used to enhance the performance of asphalt mixtures. It is a naturally occurring hydrocarbon resin that is mined from specific deposits in the Uinta Basin in Utah, United States and IRAN. Gilsonite is known for its exceptional properties that contribute to improved asphalt performance. When added to asphalt binders or mixtures, it offers several benefits such as increased durability, improved flexibility, enhanced resistance to aging and cracking, and reduced rutting. PARS Universal Bitumen as your Asphalt Grade Gilsonite Supplier.

Why Use Gilsonite in Asphalt?

Natural asphalt acts as a natural performance enhancer for asphalt applications. Unlike synthetic additives, it offers high thermal stability, strong bonding, and resistance to water and aging.

Key Advantages of Asphalt Grade Gilsonite

• ✅ Improves high-temperature stability (anti-rutting)

• ✅ Increases binder stiffness and elasticity

• ✅ Enhances resistance to UV and oxidation

• ✅ Strengthens adhesion between aggregate and binder

• ✅ Extends pavement lifespan by reducing cracking and fatigue

• ✅ 100% natural and environmentally safer than synthetic modifiers

One of the key advantages of Asphalt Grade Gilsonite is its ability to enhance the viscosity and elasticity of asphalt binders. It acts as a binder modifier, improving the flow and workability of the asphalt mixture during construction. This results in better compaction and densification, leading to a more durable and long-lasting pavement.

Furthermore, Natural asphalt has a high melting point, which helps improve the resistance of asphalt to deformation at high temperatures. It reduces the risk of rutting, particularly in areas with heavy traffic and high ambient temperatures. This makes it an ideal additive for asphalt pavements subjected to extreme weather conditions.

Another noteworthy property of Asphalt Grade Gilsonite is its ability to enhance the resistance of asphalt to aging and cracking. It acts as a natural antioxidant, protecting the asphalt binder from the harmful effects of oxidation and UV radiation. This helps extend the lifespan of asphalt pavements and reduces the need for frequent maintenance and repairs.

In addition to its performance-enhancing properties, Natural asphalt also offers environmental benefits. It is a naturally occurring substance and is considered a sustainable alternative to synthetic additives. Its use in asphalt mixtures can contribute to the reduction of carbon emissions associated with asphalt production and construction.

Applications of Asphalt Grade Gilsonite

1. Hot Mix Asphalt (HMA)

Gilsonite is blended with asphalt binder to produce stronger, more durable hot mix asphalt. Ideal for:

• Highways and expressways

• Heavy-duty truck routes

• Industrial zones

2. Modified Asphalt Binder

Gilsonite boosts the softening point, penetration index, and viscosity of base bitumen, making it suitable for:

• Polymer Modified Bitumen (PMB) blends

• SBS/APP-modified asphalt

• Penetration and viscosity grade binders

3. Seal Coats and Surface Dressing

Gilsonite-enhanced emulsions create water-resistant seal coats that protect roads, driveways, and airport runways from environmental damage.

4. Cold Mix Asphalt

In cold-mix formulations, Gilsonite acts as a workability and adhesion enhancer for patching and low-temperature applications.

When using Asphalt Grade Gilsonite, it is important to properly incorporate it into the asphalt mixture to ensure uniform dispersion and effective performance. The dosage and blending process may vary depending on the specific project requirements and the desired performance improvements.

Technical Specifications of Asphalt Grade Gilsonite

Note: Specifications vary by mesh size and origin (American vs. Iranian Gilsonite).

Product Grades and Availability

Mesh Sizes

• Lump (unprocessed)

• Granules (30–70 mesh)

• Fine Powder (200 mesh)

• Pelletized (easy integration into asphalt mix)

Packaging

• 25 kg bags (kraft paper or PE liner)

• 1 MT jumbo bags

• Custom packaging available upon request

 

Frequently Asked Questions (FAQs)

Q1. What makes Asphalt Grade Gilsonite different from synthetic modifiers?

A: Gilsonite is a natural, resin-rich hydrocarbon with no need for chemical modification. It provides better thermal stability, adhesion, and durability compared to many synthetic polymers.

Q2. Can Gilsonite be used with Polymer Modified Bitumen (PMB)?

A: Yes. Gilsonite is highly compatible with PMB systems, especially SBS and APP-modified asphalts, and often improves rutting resistance and fatigue performance.

Q3. How much Gilsonite should be added to asphalt mixes?

A: Typical usage rates range from 5% to 15% by weight of the bitumen, depending on the performance requirements and mix design.

Q4. Is Gilsonite environmentally safe?

A: Yes. Gilsonite is a naturally occurring material with low emissions and no hazardous decomposition products when processed properly.

Conclusion: The Natural Solution for Stronger Roads

Asphalt Grade Gilsonite is a valuable additive that can significantly enhance the performance of asphalt mixtures. Its unique properties contribute to improved durability, flexibility, resistance to aging and cracking, and reduced rutting. By incorporating Gilsonite into asphalt binders or mixtures, engineers and contractors can create long-lasting and high-performing pavements.

Asphalt Grade Gilsonite is a proven solution for modern pavement challenges—offering unmatched durability, performance, and value across a wide range of road construction and maintenance applications. Whether you’re formulating high-performance mixes or looking to extend pavement life under heavy traffic, Gilsonite delivers reliable results.

• Gilsonite performance in modified asphalt

• Asphalt grade Natural bitumen

• Gilsonite for road construction

• Gilsonite asphalt modifier

• Natural bitumen for paving

🔥Contact PARS Universal Bitumen LTD. for Gilsonite Supply and Technical Support

Looking for a trusted supplier of Asphalt Grade Gilsonite with technical expertise and export-ready logistics?

At PUB-Ltd, we offer:

• High-purity Gilsonite (Iranian or American origin)

• Custom mesh sizes and packing

• Support for asphalt mix design and formulation

Get in touch today to speak with our experts, request a technical data sheet, or receive a custom quote for Cementing Grade Gilsonite tailored to your drilling project. PUB-Ltd as your Asphalt Grade Gilsonite Supplier. 

📩 [Contact Us Now] or 📞 Call our team of specialists to learn how our premium-grade Gilsonite can boost the strength, flexibility, and reliability of your oil well cementing operations.