冷再生技术在公路工程中具有显著的经济效益，主要体现在以下几个方面：

　　Cold recycling technology has significant economic benefits in highway engineering, mainly reflected in the following aspects: 

　　1. 材料节约：冷再生技术利用旧沥青路面的表层材料与骨料、细集料进行一定比例调配，同时使用石灰、粉煤灰等材料进行调和，减少了新材料的使用，降低了材料成本。

　　1. Material saving: Cold recycling technology utilizes the surface materials of old asphalt pavement to mix with aggregates and fine aggregates in a certain proportion, while using materials such as lime and fly ash for blending, reducing the use of new materials and lowering material costs.

　　2. 施工效率提升：由于该技术主要建设在原有的施工基础上，一定程度上提升了整体路面施工的效率，缩短了工期，减少了交通中断状况及施工安全问题，可半封闭施工，改善交通中断状况及施工安全。

　　2. Improvement of construction efficiency: As this technology is mainly built on the original construction foundation, it has improved the overall efficiency of road construction to a certain extent, shortened the construction period, reduced traffic interruptions and construction safety issues, and can be semi enclosed for construction, improving traffic interruptions and construction safety.

　　3. 生产率高：WR2000就地冷再生机具有很高的生产率，能保证连续拌和，精确控制铺筑厚度，传感器及控制系统能保证转子的切削深度，从而获得精确的冷再生厚度。

　　3. High productivity: The WR2000 on-site cold recycling machine has high productivity, ensuring continuous mixing and precise control of paving thickness. The sensor and control system can ensure the cutting depth of the rotor, thereby obtaining accurate cold recycling thickness.

　　4. 环保性：冷再生技术提高了材料应用的环保性，符合可持续发展的要求，有助于减少环境污染和资源浪费。

　　4. Environmental friendliness: Cold recycling technology improves the environmental friendliness of material applications, meets the requirements of sustainable development, and helps reduce environmental pollution and resource waste.

　　综上所述，冷再生技术在公路工程中的应用不仅能够节约成本，还能提高施工效率和环保性能，具有较高的经济性和社会效益。需要注意的是，冷再生技术在我国目前还处于试验推广阶段。

　　In summary, the application of cold recycling technology in highway engineering can not only save costs, but also improve construction efficiency and environmental performance, with high economic and social benefits. It should be noted that cold recycling technology is still in the experimental and promotional stage in China.

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