沥青混凝土是道路建设过程中常见的基本施工材料，而且其具有足够的强度和稳定性。相比传统的水泥混凝土路面，沥青混凝土路面具有更平整，无接缝，行车平稳，振动小，噪声低，施工期短，养护方便等优点，因此沥青混凝土路面成为了我国道路建设过程中的主要类型。而冷再生技术是道路建设的一种新型成熟技术，是利用冷再生机械设备加上相应的材料、添加剂、水等将旧沥青混凝土路面进行铣刨、破碎、添加、拌合加工、摊铺、压实作业的过程。特别是对于大中修及路面改造工程，沥青混凝土路面冷再生技术的出现大大降低了建设施工的成本，节省了材料并且提高了材料的利用率，既保护了环境，更带来经济效益。沥青混凝土路面冷再生技术拥有高适应性，建设所需的工期短且建设成本低以及保护环境等优点，在道路建设工作中受到了广泛地使用，推动了道路建设事业的发展。

Asphalt concrete is a common basic construction material in road construction, and it has sufficient strength and stability. Compared to traditional cement concrete pavement, asphalt concrete pavement has advantages such as smoother, seamless, smooth driving, less vibration, low noise, short construction period, and convenient maintenance. Therefore, asphalt concrete pavement has become the main type of road construction in China. Cold recycling technology is a new and mature technology in road construction, which uses cold recycling machinery and equipment with corresponding materials, additives, water, etc. to mill, crush, add, mix, process, pave, and compact the old asphalt concrete pavement. Especially for major and medium-sized repairs and road surface renovation projects, the emergence of cold recycling technology for asphalt concrete pavement has greatly reduced construction costs, saved materials, and improved material utilization, which not only protects the environment but also brings economic benefits. The cold recycling technology of asphalt concrete pavement has the advantages of high adaptability, short construction period, low construction cost, and environmental protection. It has been widely used in road construction work, promoting the development of road construction.

我国很多地方的道路路面损坏的情况都不容乐观，有的是路面出现裂缝的现象，大大降低了路面的强度和承载，使路面遭到破坏，严重影响路面的正常通行。有的路面出现变形的情况，对行人以及车辆的安全通行都造成了一定的影响。冷再生技术主要应用于旧路的路面、损坏的路面、逐渐老化的沥青路面以及长时期的使用导致过度疲劳而开裂的路面等。

The situation of road surface damage in many parts of our country is not optimistic, some of which have cracks on the road surface, greatly reducing the strength and bearing capacity of the road surface, causing damage to the road surface, and seriously affecting the normal traffic of the road surface. The deformation of some road surfaces has caused certain impacts on the safe passage of pedestrians and vehicles. Cold recycling technology is mainly applied to old road surfaces, damaged roads, gradually aging asphalt roads, and roads that crack due to excessive fatigue caused by long-term use.

它可以有效解决半刚性基层的反射裂缝问题，而且冷再生技术的施工工期比较短，在交通量很大的路面建设施工中也同样试用，通过分期施工的方式修复路面不仅不会阻断路面的交通而且所需的时间也大大降低。由于冷再生技术在修复路面时能够二次利用原路面的材料，不需要再大量的购买砂石等建筑材料从而提高了材料的利用率，减少了对资源的消耗达到了保护环境的效果。所以沥青路面冷再生技术具有广阔的工程前景。

It can effectively solve the problem of reflection cracks in semi-rigid base layers, and the construction period of cold regeneration technology is relatively short. It is also tested in the construction of road surfaces with high traffic volume. The repair of road surfaces through phased construction not only does not block traffic on the road surface, but also greatly reduces the time required. Due to the fact that cold recycling technology can reuse the materials of the original road surface during road repair, there is no need to purchase a large amount of building materials such as sand and gravel, thereby improving the utilization rate of materials and reducing resource consumption, achieving the effect of environmental protection. So the cold recycling technology of asphalt pavement has broad engineering prospects.

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.