公司新闻
冷再生回收再利用的施工工艺！
来源：https://www.sddhfjx.com/ 日期：2021-01-28
冷再生是铣刨原沥青路面面层后,将铣刨料运至拌合站后进行破碎和筛分,并掺入适当比例的新集料，再生结合料、再生剂、活性填料(水泥、石灰等)及水等材料后经过常温拌和、摊铺、碾压等工序，冷再生可实现旧沥青路面回收再生重利用。冷再生工艺适用于高速公路和一、二级公路沥青路面的下面层及基层、底基层，三、四级公路沥青路面的面层。
Cold recycling is that after milling the original asphalt pavement surface, the milling material is transported to the mixing station for crushing and screening, and mixed with appropriate proportion of new aggregate, recycled binder, regenerant, active filler (cement, lime, etc.) and water and other materials, then through normal temperature mixing, paving, rolling and other processes, cold recycling can realize the recycling of old asphalt pavement. Cold recycling technology is suitable for the lower layer, base and subbase of Expressway and first and second class highway asphalt pavement, and the surface layer of third and fourth class highway asphalt pavement.
当用于三四级公路的面层时，应采用稀浆封层、碎石封层、微表处等作为表面磨耗层。冷再生是采用专用铣刨设备铣刨原沥青路面后，将铣刨料运至拌合站后进行破碎和筛分（必要时），并掺入适当比例的新集料、再生结合料、再生剂、活性填料（水泥、石灰等）及水等材料后经过常温拌和、摊铺、碾压等工序，实现旧沥青路面再利用的技术。
When it is used for the surface course of class III and IV Highway, slurry seal, gravel seal and micro surfacing shall be used as the surface wearing course. Cold recycling is a technology that uses special milling equipment to mill the original asphalt pavement, transport the milling material to the mixing station for crushing and screening (if necessary), and mix with appropriate proportion of new aggregate, recycled binder, recycled agent, active filler (cement, lime, etc.) and water, and then mix, pave, roll and other processes at room temperature to realize the reuse of the old asphalt pavement.
冷再生技术特点是铣刨的旧沥青混合料（同基层一起铣刨时，含基层材料）可以全部回收利用，降低了原材料成本，减少环境污染。用乳化沥青作为有机再生结合料以及水泥或石灰作为无机再生结合料，形成一种复合有机水硬性材料，提供足够的承载力。由于采用乳化沥青改善了施工条件，延长了可施工季节。与就地冷再生相比，对混合料配合比控制更为准确，提高路面平整度，保证路用性能。
The feature of cold recycling technology is that the milled old asphalt mixture (including the base material when milled together with the base) can be fully recycled, reducing the cost of raw materials and reducing environmental pollution. Using emulsified asphalt as organic recycled binder and cement or lime as inorganic recycled binder, a composite organic hydraulic material is formed to provide sufficient bearing capacity. The application of emulsified asphalt improves the construction conditions and prolongs the construction season. Compared with in-situ cold recycling, the control of mixture proportion is more accurate, which can improve pavement smoothness and ensure road performance.
冷再生工艺对于不值得进行热再生回收的旧料也可以再生利用，从而有效解决旧料废弃和环境污染问题。将回收并堆放于拌合场地的铣刨料通过40mm的振动筛清除超粒径颗粒，将粗、细料分类堆放，并按照设计好的泡沫沥青冷再生混合料配合比，将材料投入冷再生机中进行泡沫沥青冷再生。摊铺机以1.5～2.5 m/min的速度，将拌合好的泡沫沥青再生混合料回铺到水泥稳定碎石基层上。再生混合料摊铺作业完成后，由压路机对泡沫沥青冷再生基层进行初压、复压、终压组合碾压。
The cold recycling process can also recycle the old materials which are not worthy of hot recycling, so as to effectively solve the problems of waste materials and environmental pollution. The milling material recovered and stacked in the mixing site is cleared by the 40mm vibrating screen. The coarse and fine materials are stacked and stacked. According to the mix proportion of the foamed asphalt cold recycled mixture designed, the material is put into the cold recycling machine for cold regeneration of the foamed asphalt. The paver regenerates the mixture of recycled foamed asphalt into cement stabilized macadam base at a speed of 1.5 to 2.5 m/min. After the regenerated mixture paving operation is completed, the roller asphalt cold recycling base is initially compacted, repressed and final compacted by roller.
公司地址：济南市槐荫区经一路273号群盛华城2号楼1-404
公司名称：山东途畅路桥工程有限公司 
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