材料组成：沥青、粗集料、细集料、矿粉（有的加入聚合物和木纤维素）。

Material composition: asphalt, coarse aggregate, fine aggregate, mineral powder (some with added polymers and wood cellulose).

力学强度：由矿物颗粒之间的内摩擦阻力和嵌挤力，以及沥青胶结料和矿物之间的胶结力构成。

Mechanical strength: composed of the internal friction resistance and extrusion force between mineral particles, as well as the bonding force between asphalt binder and minerals.

基本分类：按材料组成和结构分（连续级配、间断级配）、按矿物集配组成及空隙大小（密级配、半开级配、开级配）、按公称最大粒径分（特粗式、粗粒式、中粒式、细粒式、砂粒）、按生产工艺分（热拌沥青混合料、冷拌沥青混合料、再生沥青混合料）。

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Basic classification: by material composition and structure (continuous grading, intermittent grading), by mineral aggregate composition and pore size (dense grading, semi open grading, open grading), by nominal maximum particle size (extra coarse, coarse, medium, fine, sand), and by production process (hot mix asphalt mixture, cold mix asphalt mixture, recycled asphalt mixture).

结构类型分（嵌挤原则、密实级配原则）

Classification of structural types (embedding principle, dense grading principle)

级配原则：悬浮密实结构、骨架空隙结构、骨架密实结构。

Grading principles: suspended dense structure, skeleton void structure, skeleton dense structure.

主要材料沥青的性能：针入度、软化点、延度。（粘结性、感温性、耐久性、塑性、安全性：闪电试验）

The performance of the main material asphalt: penetration, softening point, and ductility. (Adhesion, Temperature Sensitivity, Durability, Plasticity, Safety: Lightning Test)

普通沥青混合料（AC型沥青混合料：城市次干道、辅路或人行道等场所）

Ordinary asphalt mixture (AC type asphalt mixture: urban secondary roads, auxiliary roads or sidewalks, etc.)

改性沥青混合料（较高路面抗流动性、高温下抗车辙能力、良好的路面柔性和弹性即低温下抗开裂的能力）。材料配比采用SMA结构形式，适用于交通流量和行驶频度急剧增加，客运车的轴重不断增加，严格实行分车道单向行驶的城镇主干道和城镇快速干道。

Modified asphalt mixture (with high pavement resistance to flow, resistance to rutting at high temperatures, good pavement flexibility and elasticity, i.e. resistance to cracking at low temperatures). The material ratio adopts the SMA structural form, which is suitable for urban main roads and urban expressways where traffic flow and driving frequency increase sharply, and the axle load of passenger vehicles continues to increase. Strict implementation of lane separation and one-way driving is required.

沥青玛蹄脂碎石混合料（SMA）:间断级配的沥青混合料，针入度小，软化点高，温度稳定的沥青。适用于城市主干道和城镇快速干道。

Asphalt Mastic Asphalt (SMA): Intermittent graded asphalt mixture with low penetration, high softening point, and stable temperature. Suitable for urban main roads and urban expressways.

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