施工准备工作是保证冷再生技术顺利开展的前提，施工准备期间需要对道路的信息情况进行充分的采集与分析，从而制定出一个合理的施工方案。主要任务有以下几点：一是对原路面的使用情况和原路面所处的环境进行调查，并对相关的数据进行统计。二是对原路面的严重损害路段进行预处理，结合路面的实际情况对中下面层进行彻底修复，确保基础的承载力。三是合理调配人、材、机，在进行冷再生技术前应该对建设施工过程中所需用到的材料和设备等进行检查，保证其满足施工的要求。四是进行铺设试验段，既能测量出各环节的施工所需要的温度以及施工速度等相关数据，又能对各项指标做出检测，因此铺设试验段很有代表性。

Construction preparation work is a prerequisite for ensuring the smooth implementation of cold recycling technology. During the construction preparation period, it is necessary to fully collect and analyze the information of the road, in order to develop a reasonable construction plan. The main tasks include investigating the usage of the original road surface and the environment in which it is located, and collecting relevant data. The second is to preprocess the severely damaged sections of the original road surface, and thoroughly repair the middle and lower layers based on the actual situation of the road surface to ensure the bearing capacity of the foundation. The third is to reasonably allocate personnel, materials, and machinery. Before implementing cold recycling technology, the materials and equipment required during the construction process should be inspected to ensure that they meet the construction requirements. The fourth is to conduct a laying test section, which can not only measure the temperature and construction speed required for each stage of construction, but also detect various indicators. Therefore, the laying test section is very representative.

（1）清扫路面。在施工准备工作完成之后一定要彻底打扫路面，障碍物，保持路面的整洁，避免路面的杂物给施工的质量带来影响。

(1) Clean the road surface. After the construction preparation work is completed, it is necessary to thoroughly clean the road surface, remove obstacles, maintain the cleanliness of the road surface, and avoid the impact of debris on the quality of construction.

（2）施工放样，撒布水泥。在施工前进行放样操作，并打格计量卸放水泥，水泥量按5%计，确保均匀撒布水泥。

(2) Construction layout, spreading cement. Before construction, carry out layout operations and measure the discharge of cement by grid. The cement amount is calculated at 5% to ensure uniform distribution of cement.

（3）冷再生机铣刨拌合。用冷再生机将旧路面和基层铣刨、破碎后混合均匀，喷洒装置按配比要求喷入乳化沥青，再将各种材料搅拌均匀。铣刨速度根据旧路结构状况和混合料的配合比确定，一般为5-8m/min。沥青混凝土破碎的粒径不大于30cm。在铣刨、破碎过程中及时检测，保证混合料级配符合要求。由于碾压必须在水泥初凝前进行。单幅拌合长度应控制在200m以内。拌和时由再生机电脑控制加水量。

(3) Cold regeneration machine milling and mixing. Use a cold recycling machine to mill and crush the old road surface and base layer, mix them evenly, spray emulsified asphalt into the spraying device according to the ratio requirements, and then mix various materials evenly. The milling speed is determined based on the condition of the old road structure and the mix ratio of the mixture, generally 5-8m/min. The maximum particle size of asphalt concrete crushing shall not exceed 30cm. Timely detection during milling and crushing processes to ensure that the gradation of the mixture meets the requirements. Due to the fact that compaction must be carried out before the initial setting of cement. The length of a single mixing should be controlled within 200m. The amount of water added during mixing is controlled by the regeneration machine computer.

随着社会的可持续发展，沥青混凝土路面冷再生技术的发展越来越成熟，受到人们的关注和喜爱也越来越多，且其优势也逐渐显现出来：投资的成本较低；施工所需的时间较短；提高了材料的利用率从而提高了资源的利用率；尤其是传统的技术运用无机材料，污染性很高，冷再生技术的应用减少了对环境的污染。因此冷再生技术在公路建设方面，给社会带来了更多的经济效益，推动了社会的可持续发展。

With the sustainable development of society, the development of cold recycling technology for asphalt concrete pavement is becoming more and more mature, attracting more and more attention and love from people, and its advantages are gradually emerging: lower investment costs; The construction time required is relatively short; Improved material utilization, thereby enhancing resource utilization; Especially with the use of inorganic materials in traditional technologies, the pollution is high, and the application of cold regeneration technology reduces environmental pollution. Therefore, cold recycling technology has brought more economic benefits to society and promoted sustainable development in highway construction.