冷再生机租赁：旧路变新路的“黑科技”，省百万成本还减废料

　　Leasing of cold recycling machines: the "black technology" of transforming old roads into new ones, saving millions of costs and reducing waste

　　在道路养护与改造中，旧水泥路面的处理曾是一大难题——传统方式需将破损路面全部拆除、清运，不仅产生大量建筑垃圾，还得采购新集料，成本动辄上百万，工期也冗长。而冷再生机凭借一套高效的就地冷再生水稳下基层工艺，把“拆旧建新”变成“旧料重生”，既让老路变回平整坚固的新路，又省下巨额成本、减少废料污染，堪称基建领域的“绿色黑科技”。

　　In road maintenance and renovation, the treatment of old cement pavement was once a major challenge - traditional methods required the complete demolition and removal of damaged pavement, which not only generated a large amount of construction waste, but also required the purchase of new aggregates, with costs often exceeding millions and construction periods being lengthy. The cold regeneration machine, relying on an efficient on-site cold regeneration water stabilizing grassroots process, transforms "demolishing old and building new" into "regenerating old materials". It not only turns old roads back into flat and sturdy new roads, but also saves huge costs and reduces waste pollution, making it a "green black technology" in the field of infrastructure.

　　冷再生机的核心魔力，藏在一套环环相扣的就地施工流程里，每一步都围绕“旧料全利用、强度有保障”展开。改造的第一步，是对旧水泥路面进行碎石化处理——冷再生相关设备会将破损的水泥板破碎成大小均匀的集料，这些原本要被当作废料运走的旧料，此刻成了再生基层的“主角”。碎石化完成后，进入深度破碎及碾压环节，通过设备进一步细化集料颗粒，同时用压路机初步压实，让集料形成稳定的基础骨架，避免后续施工中出现沉降。

　　The core magic of the cold recycling machine is hidden in a set of interlocking on-site construction processes, with each step revolving around "fully utilizing old materials and ensuring strength". The first step in the renovation is to crush the old cement pavement - cold recycling equipment will crush the damaged cement boards into uniformly sized aggregates. These old materials, which were originally intended to be transported as waste, have now become the "protagonists" of the recycled base layer. After the crushing process is completed, it enters the deep crushing and rolling stage, where the aggregate particles are further refined by equipment. At the same time, a roller is used for initial compaction to form a stable foundation skeleton of the aggregate, avoiding settlement during subsequent construction.

　　紧接着是二度破碎与调级配，这一步是为了让集料级配更符合水稳基层的强度要求——设备会根据设计标准，调整不同粒径集料的比例，确保再生料能紧密咬合，提升基层的承载能力。随后，水泥智能定量洒布车登场，这是冷再生技术精准控料的关键：通过智能系统实时调节撒布量，即便设备行进速度变化，也能保证水泥均匀覆盖在破碎后的路面上，既不会因水泥过多导致基层开裂，也不会因过少影响粘结强度，为再生料的稳定提供核心“粘合剂”。

　　The next step is secondary crushing and grading, which is to make the aggregate grading more in line with the strength requirements of the water stable base layer. The equipment will adjust the proportion of different particle sizes of aggregates according to the design standards to ensure that the recycled materials can be tightly interlocked and improve the bearing capacity of the base layer. Subsequently, the intelligent quantitative spraying truck for cement was introduced, which is the key to precise material control in cold recycling technology: by adjusting the spraying amount in real time through the intelligent system, even if the equipment's travel speed changes, it can ensure that the cement is evenly covered on the broken road surface. It will not cause cracking of the base layer due to excessive cement, nor will it affect the bonding strength due to insufficient cement, providing the core "adhesive" for the stability of recycled materials.

　　当水泥撒布完成，就地再生机械便成为流程的核心。它会将粉碎的旧水泥板集料与水泥、适量水分充分搅拌，让每一粒集料都裹覆水泥浆，形成均匀的再生混合料。搅拌完成后，先用压路机静压1-2遍初步固定形态，再用平地机根据设计标高和纵横坡度仔细整平，确保路面平整度达标。之后换上26吨振动压路机加压4-5遍，让混合料致密成型，最后用胶轮压路机碾压1-2遍，进一步提升基层的平整度与密实度，一套“旧料变新基层”的操作就此完成。

　　When the cement spreading is completed, on-site recycling machinery becomes the core of the process. It will thoroughly mix the crushed old cement board aggregate with cement and an appropriate amount of water, so that each aggregate is coated with cement slurry, forming a uniform recycled mixture. After mixing is completed, first use a roller to statically press 1-2 times to preliminarily fix the shape, and then use a grader to carefully level the road surface according to the design elevation and longitudinal and transverse slopes to ensure that the road surface smoothness meets the standard. Afterwards, a 26 ton vibratory roller was used to pressurize the mixture 4-5 times, allowing it to compact and form. Finally, a rubber roller was used to roll the mixture 1-2 times, further improving the flatness and compactness of the base layer. This completed the operation of "old material to new base layer".

　　流程的最后是养生环节，这一步直接关系到基层的最终强度。经质检合格后，工作人员会对水泥稳定碎石路段喷雾洒水，保持基层湿润，随后立即覆盖塑料薄膜锁水。养护期内需要封闭道路，避免外力扰动，7天的养护时间能让水泥充分水化反应，让再生基层达到设计强度，为后续路面面层施工筑牢基础。

　　The final step of the process is the health preservation stage, which directly affects the final strength of the grassroots level. After passing the quality inspection, the staff will spray water on the cement stabilized macadam section to keep the base layer wet, and then immediately cover the plastic film to lock the water. During the maintenance period, the road needs to be closed to avoid external disturbances. A 7-day maintenance period can allow the cement to fully hydrate and react, enabling the recycled base to reach the design strength and laying a solid foundation for subsequent pavement surface construction.

　　道路施工实用建议

　　Practical suggestions for road construction

　　采用冷再生机进行旧路改造时，需提前勘察旧路面破损程度，根据集料情况调整碎石化与调级配参数，确保再生料级配达标；水泥撒布前需校准智能洒布车的计量系统，避免因误差影响基层质量；整平环节要严格把控标高与坡度，可通过挂线测量实时调整，确保路面平整度符合规范；养护期务必做好道路封闭管理，禁止车辆行人进入，同时定期检查薄膜覆盖情况，防止水分过快蒸发影响养生效果。

　　When using a cold recycling machine for old road reconstruction, it is necessary to investigate the degree of damage to the old road surface in advance, adjust the crushing and grading parameters according to the aggregate situation, and ensure that the grading of the recycled materials meets the standard; Before spreading cement, it is necessary to calibrate the measuring system of the intelligent sprinkler truck to avoid affecting the quality of the base layer due to errors; The leveling process should strictly control the elevation and slope, which can be adjusted in real time through hanging line measurement to ensure that the road surface flatness meets the specifications; During the maintenance period, it is necessary to implement road closure management, prohibit vehicles and pedestrians from entering, and regularly check the film coverage to prevent rapid evaporation of moisture from affecting the health effect.

　　冷再生机的价值，远不止“旧路变新路”这么简单——它让每一寸旧水泥路面都得到充分利用，减少了建筑垃圾的产生与清运成本，单此一项就能为项目省下数十万甚至上百万；一体化的就地施工流程，省去了新集料采购、运输等环节，工期也比传统方式缩短近半。这种既经济又环保的“黑科技”，正在让更多旧路重获新生，也为基建行业的绿色可持续发展提供了高效解决方案。若需了解具体项目的冷再生施工方案或设备选型，可咨询专业技术团队获取定制化建议。

　　The value of a cold recycling machine is far more than simply transforming old roads into new ones - it allows every inch of old cement pavement to be fully utilized, reducing the generation and transportation costs of construction waste. This alone can save hundreds of thousands or even millions of dollars for the project; The integrated on-site construction process eliminates the need for new aggregate procurement and transportation, and shortens the construction period by nearly half compared to traditional methods. This "black technology" that is both economical and environmentally friendly is revitalizing more old roads and providing efficient solutions for the green and sustainable development of the infrastructure industry. If you need to know the specific cold recycling construction plan or equipment selection for a project, you can consult a professional technical team for customized advice.

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