冷再生机铣刨技术是道路养护领域的一项革新工艺，其核心在于通过专用机械在常温环境下对旧沥青路面进行处理。该技术集铣刨、破碎、再生料拌和及摊铺功能于一体，能够针对路面面层及部分基层实施精准作业。其工作原理依托于高速旋转的铣刨转子，该转子搭载合金刀具，以垂直或水平进给方式切入旧路面，将老化沥青层与基层材料剥离成细小颗粒。与此同时，再生机通过智能喷洒系统按比例注入乳化沥青、泡沫沥青或水泥等稳定剂，配合精确计量的水，在搅拌仓内与铣刨料充分混合。这一过程不仅实现了旧料的100%循环利用，更通过级配优化技术，补充了原路面缺失的骨料成分，使再生混合料性能达到或超过新建路面标准。

　　Cold recycling machine milling technology is an innovative process in the field of road maintenance, whose core is to efficiently treat old asphalt pavement at room temperature through specialized machinery. This technology integrates milling, crushing, mixing of recycled materials, and paving functions, and can implement precise operations for road surface layers and some base layers. Its working principle relies on a high-speed rotating milling rotor, which is equipped with alloy cutting tools and cuts into the old road surface in a vertical or horizontal feed manner, peeling the aged asphalt layer and base material into small particles. At the same time, the regenerator will inject stabilizing agents such as emulsified asphalt, foam asphalt or cement in proportion through the intelligent spraying system, and mix with milled materials in the mixing bin with accurately measured water. This process not only achieves 100% recycling of old materials, but also supplements the missing aggregate components of the original road surface through gradation optimization technology, making the performance of recycled mixtures meet or exceed the standards of new road surfaces.

　　该技术的作业优势体现在多个维度。相较于传统热再生工艺，冷再生机铣刨无需加热环节，能耗降低60%以上，且施工过程中无有害气体排放，符合绿色施工理念。从效率层面分析，单机日处理面积可达8000，是人工破碎方式的20倍。更重要的是，经冷再生处理的路面结构层，其抗车辙能力提升40%，水稳性指标优于普通水稳基层，使用寿命延长3-5年。

　　The homework advantages of this technology are reflected in multiple dimensions. Compared to traditional hot recycling processes, cold recycling machines for milling and planing do not require heating, reducing energy consumption by more than 60%, and there are no harmful gas emissions during the construction process, which is in line with the concept of green construction. From an efficiency perspective, the daily processing area of a single machine can reach 8000 square meters, which is 20 times that of manual crushing methods. More importantly, the road structure layer treated with cold recycling has a 40% increase in anti rutting ability, better water stability indicators than ordinary water stable base layers, and an extended service life of 3-5 years.

　　实际操作中，技术人员需严格把控三项关键参数。是铣刨深度控制，通过激光测距系统实时监测，确保误差控制在±5毫米以内，避免破坏完好基层。其次是行走速度调节，根据旧料老化程度，在2-6米/分钟范围内动态调整，保证铣刨料级配连续性。是稳定剂掺量控制，采用双计量泵系统，乳化沥青误差≤2%，水泥撒布量误差≤1.5%。

　　In practical operation, technicians need to strictly control three key parameters. Firstly, the milling depth control is achieved through real-time monitoring using a laser ranging system, ensuring that the error is controlled within ± 5 millimeters and avoiding damage to the intact base layer. Secondly, the walking speed is adjusted dynamically within the range of 2-6 meters per minute according to the aging degree of the old material, ensuring the continuity of the milling material grading. Finally, the stabilizer dosage control adopts a dual metering pump system, with emulsified asphalt error ≤ 2% and cement spreading error ≤ 1.5%.

　　在特殊路况处理方面，该技术展现出的适应性。针对车辙病害路段，可通过加密铣刨刀具排列，形成波浪形切割面，增强新旧料咬合度；对于裂缝密集区域，则采用分层铣刨工艺，先剥离表层再处理基层裂缝，配合纤维增强型乳化沥青，使抗裂性能提升70%。

　　In terms of handling special road conditions, this technology demonstrates excellent adaptability. For road sections with rutting diseases, the arrangement of milling and planing tools can be increased to form a wavy cutting surface, enhancing the bite between new and old materials; For areas with dense cracks, a layered milling process is used to first peel off the surface layer and then treat the cracks in the base layer. Combined with fiber-reinforced emulsified asphalt, the crack resistance performance is improved by 70%.

　　质量控制环节，需遵循“三检制度”：铣刨后立即进行含水量快速检测，确保在5%-7%区间；摊铺时采用核子密度仪跟踪检测，压实度达标率需达98%以上；养生期结束后，运用落锤式弯沉仪评估结构层强度，承载能力应满足设计要求。

　　In the quality control process, it is necessary to follow the "three inspection system": immediately conduct a rapid moisture content test after milling to ensure that it is within the optimal range of 5% -7%; During paving, a nuclear density meter is used for tracking and detection, and the compaction compliance rate must reach 98% or above; After the health preservation period, the structural layer strength should be evaluated using a drop hammer deflectometer, and the bearing capacity should meet the design requirements.

　　随着材料科学的进步，新型冷再生技术已实现功能拓展。例如，添加橡胶粉改性剂的再生料，可将行车噪音降低5分贝；掺入相变材料的智能型再生层，可自动调节路面温度，延缓反射裂缝产生。这些创新应用，正推动冷再生机铣刨技术向多功能、智能化方向演进，为道路可持续发展提供有力支撑。

　　With the advancement of materials science, new cold recycling technologies have achieved functional expansion. For example, adding rubber powder modifier to recycled materials can reduce driving noise by 5 decibels; The intelligent regeneration layer mixed with phase change materials can automatically adjust the road surface temperature and delay the occurrence of reflective cracks. These innovative applications are driving the evolution of cold recycling machine milling technology towards multifunctionality and intelligence, providing strong support for sustainable road development.

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