Gilsonite in Asphalt
“GILSONITE: PACING THE FUTURE WITH ADVANCED ASPHALT MODIFICATION”
Gilsonite in Asphalt and Construction, Gilsonite is a naturally occurring solid hydrocarbon and is currently being marketed as an asphalt modifier. Powdered Gilsonite is added to asphalt paving mixes to improve pavement performance. Gilsonite is a modifier, which is intended to increase the stability of the pavement and help resist rutting often found on today’s pavements. Gilsonite is using as a performance-enhancing agent for asphalt mixes Bitumen modified paving mixes achieve higher PG grades (performance grade)and incorporate perfectly into the asphalt blend with no need for high shear milling as is the case with many other modifiers. Gilsonite an asphalt modifier have higher stability, reduced deformation, reduced temperature susceptibility and increased resistance to water stripping than non-modified asphalts. Gilsonite is also used to make both solvent-based and emulsion pavement sealers with superior appearance and weathering.
Gilsonite in Asphalt and Construction, Powdered Gilsonite is added to asphalt paving mixes to improve pavement performance.High-performance road surfaces have long been made possible with the use of Gilsonite. Gilsonite s superior properties make it the go-to modifier for hot mix pavements and pavement sealers. Gilsonite is used in asphalt mix as an agent for increasing the efficiency and productivity. The asphalt mixed with high content of Gilsonite without adding any other balancing materials so that it becomes a highly solid material. Gilsonite as an modifier in total of or portion regarding value and cost can replace SBS polymers in asphalt modifiers. Asphalts modified by Gilsonite have a higher stability, lower shape changes,stability against low temperatures and higher resistance against water compared to asphalts void of Gilsonite. In fact, the main task of Gilsonite in this application is to improve the stability of pavements and their resistance against shape changes which increases the ability to withstand high applied load and it is used in areas under high pressure. There are almost 35 different replacements for Gilsonite, but since their ratios of cost to benefit are higher than Gilsonite’s, Gilsonite is more often used.
KEY ADVANTAGES OF THE SYSTEM
- Exceptional Strength and Durability: The system boasts high strength, ensuring longevity and robust performance over time.
- Superior Deformation Performance: Demonstrates remarkable resistance to deformation, maintaining structural integrity under various stresses.
- Reduced Pavement Thickness: Optimizes design efficiency by allowing for thinner pavements without compromising performance.
- Reduced Temperature Susceptibility: Exhibits resilience to temperature fluctuations, enhancing stability across diverse climate conditions.
- Increased Resistance to Water Stripping: Effectively resists water-related deterioration, contributing to the system’s longevity.
- Improved Economic Performance: Enhances the economic viability of road projects by offering long-lasting, cost-effective solutions.
- Enhanced Resistance to Fatigue: Demonstrates heightened fatigue resistance, ensuring sustained performance over extended periods.
- Compensation for Poor Mix Designs: Adaptable to varying mix designs, providing a robust solution even in less-than-optimal conditions.
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Compensation for Poor Aggregates: Effectively addresses challenges associated with suboptimal aggregates, contributing to overall system resilience and performance.
Gilsonite in Asphalt and Construction, Extensive research has delved into optimizing Gilsonite’s attributes for paving applications, targeting key properties essential for superior asphalt performance. This involves tailoring asphalt characteristics to achieve optimal wear resistance, rut resistance, fatigue and low-temperature cracking resistance, adhesion strength, viscosity, and pour point. Rut resistance, vital in thwarting longitudinal surface depressions, and adhesion strength, crucial for joint sealant efficacy, are among the focal points. The interplay of these properties influences the durability and moisture resistance of asphalt concrete, directly impacting pavement service life. Siliceous aggregate usage emphasizes the critical need to prevent moisture damage and stripping. Traditionally, this is addressed through costly means such as antistripping agents or binder modifications. This study, however, critically evaluates the application of natural bitumen (Gilsonite) as a cost-effective alternative. Gilsonite’s compatibility with asphalt binder, coupled with its low cost, positions it as a compelling option to enhance moisture resistance and reduce construction expenses. Beyond cost efficiency, Gilsonite elevates asphalt mix quality. Its sulfur compounds contribute to heightened asphalt resistance, resulting in a stronger, more cohesive mix that readily integrates with asphalt without the need for excessive roller strength—setting it apart from other modifiers. In essence, Gilsonite emerges not only as a cost-effective solution but as a transformative agent, enhancing the overall performance and resilience of asphalt mixes in paving applications.
ELEVATING PAVEMENT SEALING WITH GILSONITE
PERFORMANCE AND SUSTAINABILITY
Gilsonite stands as a cornerstone in the formulation of high-performance solvent-based and emulsion pavement sealers, promising swift drying, enhanced aesthetics, and prolonged durability. Its proven properties make it a natural antioxidant, imparting a prolonged black hue to sealed pavements. Moreover, Gilsonite’s distinctive molecular fractions contribute to the rejuvenation of the underlying pavement, while its robust bonding properties effectively weatherproof the sealer.
KEY ADVANTAGES OF GILSONITE IN PAVEMENT SEALERS
- Natural Antioxidant: Gilsonite, serving as a natural antioxidant, ensures a lasting, rich black appearance in pavement sealers over an extended period.
- Pavement Rejuvenation: The unique molecular fractions within Gilsonite actively rejuvenate the pavement being sealed, contributing to its overall longevity.
- Excellent Bonding Properties: Gilsonite’s strong bonding properties not only enhance the sealer’s durability but also serve as an effective weatherproofing agent.
- Superior Appearance and Weathering Properties: Gilsonite-infused sealers boast superior visual appeal and enhanced weathering resistance, ensuring a prolonged aesthetic impact.
Furthermore, the use of Gilsonite in pavement sealers aligns with sustainable practices. By rejuvenating pavements with recycled asphalt instead of opting for replacements, there’s a substantiated reduction in energy consumption and a decreased demand for resources. This dual benefit of performance and sustainability underscores Gilsonite’s pivotal role in the realm of pavement sealing, presenting a holistic solution for long-lasting, environmentally conscious infrastructure.
PACKING OF NATURAL BITUMEN LUMP AND POWDER MICRONIZED FORM
- Gilsonite in lump form like rock packed in the 500~1000 kg jumbo bag
- Gilsonite 200 mesh packed in the 500~1000 kg jumbo bag
- Gilsonite 300 mesh packed in the 500~1000 kg jumbo bag
- Gilsonite 30-40 mesh packed in the 500~1000 kg jumbo bag
- Gilsonite 100 mesh packed in the 500~1000 kg jumbo bag
- Gilsonite 300 mesh packed in the 25 kg pp bag
- Gilsonite 200 mesh packed 25 kg multi-paper bag
- Gilsonite 200 mesh packed 50 lbs multi-paper bag
- Gilsonite 30-40 mesh packed pp bag on pallet
- Gilsonite Bulk on vessel
TECHNICAL DATA SHEET OF NATURAL ROCK BITUMEN
| NO | TEST | RESULT | TEST METHOD |
|---|---|---|---|
| 1 | ASH CONTENT,WT% | 5 | ASTM-D3174 |
| 2 | MOISTURE CONTENT,WT% | 1% | ASTM-D3173 |
| 3 | VOLATILE MATTER,WT% | 63 | ASTM-D3175 |
| 4 | SOLUBILITY IS CS2,WT% | 81 | ASTM-D4 |
| 5 | SPECIFIC GRAVITY @25C | 1.11 | ASTM-D3289 |
| 6 | NORMAL NEPTHAN INSOLUBLES,WT% | 79 | ASTM-D3279 |
| 7 | COLOR IS MASS | BLACK | ———————- |
| 8 | COLOR IN STREAK OR POWDER | BLACK | ———————- |
| 9 | SOFTENING POINT,C | 175 | ASTM-D36 |
| 10 | PENETRATION @25C | 0 | ASTM-D5 |
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