SAP Rutting-Free Agent is a new-generation high-strength asphalt mixture technology developed based on macromolecular polyolefin and inorganic modification principles. Through composite modification by increasing asphalt viscosity and enhancing aggregate friction resistance, it greatly improves the bearing capacity of asphalt pavements. The rut depth can be controlled within 1.5 cm during the 3–5 year maintenance cycle. It addresses rutting-prone sections such as heavy-load roads, intersections, expressway ramps and long longitudinal slopes, achieving the rutting-free goal for high-strength asphalt pavements.

| Index | Unit | Technical Requirement | Test Method |
|---|---|---|---|
| Appearance | - | Black, uniform granules | JT/T 860.1 |
| Mass of single particle | g | ≤0.05 | JT/T 860.1 |
| Melt index (190℃, 2.16kg) | g/10min | ≤5 | GB/T 3682.1 |
| Density | g/cm³ | ≥1.2 | GB/T 1033.1 |
| Tensile strength | MPa | ≥30 | GB/T 1040.1 |
| Flexural strength | MPa | ≥25 | GB/T 9341 |