The recycling of asphalt pavement can save a lot of raw materials such as asphalt, sand and gravel, and is conducive to the treatment of waste materials and the protection of the environment.

冷拌沥青就是冷拌沥青混合料，是一种沥青混合料的成型方法，与温拌沥青混合料和热拌沥青混合料相对应。冷拌沥青混合料的生产是在常温下，用一定级配的碎石加入乳化沥青以及添加剂进行拌和而成的沥青混合料。其与热拌沥青混合料相比较，成本低，但是混合料质量远远达不到热拌沥青混合料的质量。温拌理清混合料，这个近期几年研究得比较多，其质量比较好，生产成本跟热拌的差不多，但是能耗少，施工环境较好，等。沥青路面的再生技术，是将旧沥青路面经过翻挖、回收、破碎、筛分后，与再生剂、新沥青材料、新集料等按一定比例重新拌和混合料，使之能够满足一定的路用性能并用其重新铺筑路面的一套工艺技术。

Cold mix asphalt is cold mix asphalt mixture, which is a forming method of asphalt mixture, corresponding to warm mix asphalt mixture and hot mix asphalt mixture. The production of cold mixed asphalt mixture is an asphalt mixture mixed with graded crushed stone and emulsified asphalt and additives at room temperature. Compared with hot mix asphalt mixture, its cost is low, but the quality of mixture is far from that of hot mix asphalt mixture. In recent years, there has been a lot of research on warm mixing and clear mixture. Its quality is relatively good, and the production cost is about the same as that of hot mixing, but the energy consumption is less, and the construction environment is better, etc. The recycling technology of asphalt pavement is a set of technology that mixes the old asphalt pavement with regenerants, new asphalt materials and new aggregates in a certain proportion after digging, recycling, crushing and screening, so that it can meet certain road performance and pave the pavement again.

冷再生机是采用冷再生沥青混合料的一种再次利用的施工方法，与热再生相对应。冷再生法是用大功率路面铣刨拌和机将路面混合料在原路面上就地铣刨、翻挖、破碎，再加入稳定剂、水泥、水（或加入乳化沥青）和骨料同时就地拌和，用路拌机原地拌和，然后碾压成型。与热再生相比，要比热再生便宜，但是其再生效果较热再生差，因此大多用在低等级路面的翻修。

Cold recycling machine is a construction method of reusing cold recycled asphalt mixture, which corresponds to hot recycling. The cold recycling method is to mill, dig and crush the pavement mixture on the original pavement with a high-power pavement milling mixer, then add stabilizer, cement, water (or emulsified asphalt) and aggregate, mix in place at the same time, mix in place with a road mixer, and then roll it into shape. Compared with thermal regeneration, it is cheaper than thermal regeneration, but its regeneration effect is worse than thermal regeneration, so it is mostly used in the renovation of low-grade roads.

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