Paving
Gilsonite in Base and Binder Courses
Much of the rutting in heavy-duty pavements occurs in the lower asphalt layers, not just the surface. Modifying…
Paving with Gilsonite-Modified Asphalt
Practical guides on paving with gilsonite-modified asphalt, from compaction to heavy-duty and desert roads.
Paving
Gilsonite in Stone Mastic Asphalt (SMA)
Stone mastic asphalt (SMA) uses a coarse stone skeleton filled with a rich mastic of binder, filler and…
Paving
Gilsonite Asphalt for Intersections and Bus Lanes
Intersections and bus lanes are where pavements fail first. Braking, accelerating and stopped heavy vehicles cause rutting and…
Paving
Compaction Tips for Gilsonite-Modified Asphalt
Good compaction is critical for any asphalt, and gilsonite-modified mixes are no exception. Gilsonite increases binder viscosity. Mixes…
Paving
Gilsonite in Road Paving: An Overview for Contractors
Contractors face rising traffic loads, hotter summers and tight budgets. Gilsonite is a practical tool to build pavements…
Recommended product
Data sheet
Asphalt Modifier Grade Gilsonite
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Black powder or granules | Visual |
| Softening point (R&B) | 150 – 200 °C | ASTM D36 |
| Ash content, max | 8 % | ASTM D3174 |
| Moisture, max | 1 % | ASTM D95 |
| Solubility in TCE, min | 95 % | ASTM D2042 |
| Specific gravity @ 25°C | 1.04 – 1.10 | ASTM D70 |
| Particle size | Powder ≤ 200 mesh / granular 1–5 mm | Sieve |
| Typical dosage | 4 – 12 % by weight of binder | |
| Packing | 25 kg bags, meltable bags or 1 MT jumbo bags. | |
Typical values. The final specification is confirmed in the COA of each shipment.