改性剂调整结合料的部分性能。目录列出以PG表示的聚合物改性道路结合料；PG本身不能证明已改性。请说明改性体系及测试要求，橡胶改性等其他配方可另行审查。 请结合规定的改性证明及混合料设计相容性评估性能要求。询价中应列明用途、牌号以及老化或变形试验要求；牌号相似并不代表产品等效。
这些是SRNT目录的参考限值，不是批次实测结果或COA。每次询价须确认可供性、标准版本及合同限值。
技术指标名称和目录脚注保留英文，以确保含义准确。
| 性质／条件 | 单位 | 参考限值 | 测试方法 |
|---|---|---|---|
| PAVEMENT DESIGN TEMPERATURES | |||
| Average 7-day maximum pavement temperature | °C | 70 | Grade designation |
| Minimum pavement design temperature | °C | -28 | Grade designation |
| ORIGINAL BINDER | |||
| Flash point (Cleveland open cup) | °C | ≥230 | AASHTO T48 |
| Rotational viscosity at 135°C | Pa·s | ≤3.00 | AASHTO T316 |
| DSR, G*/sinδ at 70°C, 10 rad/s | kPa | ≥1.00 | AASHTO T315 |
| AFTER RTFO AGING | |||
| Mass change (absolute value) | mass % | ≤1.00 | AASHTO T240 |
| DSR, G*/sinδ at 70°C, 10 rad/s | kPa | ≥2.20 | AASHTO T315 |
| AFTER PAV AGING OF RTFO RESIDUE | |||
| PAV conditioning temperature¹ | °C | 100 / 110 | AASHTO R28 |
| DSR, G*·sinδ at 25°C, 10 rad/s | kPa | ≤5000 | AASHTO T315 |
| BBR creep stiffness, S at -18°C, 60 s | MPa | ≤300 | AASHTO T313 |
| BBR m-value at -18°C, 60 s | - | ≥0.300 | AASHTO T313 |
| Physical hardening at -18°C, 24 h | - | Report | AASHTO T313 |
| Direct tension² at -18°C, 1 mm/min | % strain | ≥1.0 | AASHTO T314 |
¹ PAV conditioning follows the specified climatic protocol; 110°C may be required for desert climates.
² Where permitted by the contract specification, direct tension can replace the stiffness limit when S is 300-600 MPa; the m-value requirement still applies.
Polymer modification must be confirmed in the product documentation. Elastic recovery, separation stability and M332 / MSCR traffic requirements follow the project specification; no universal extra limit is assumed here.
The contract standard and edition govern acceptance. DSR: dynamic shear rheometer. BBR: bending beam rheometer. RTFO: rolling thin-film oven. PAV: pressure aging vessel.
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