（1） Significantly reduce highway repair costs

公路修补所需要的资金很多，主要是原材料的购买需要大量的投入，水泥稳定就地冷再生技术就大大减少了购买原材料的资金。将已经破损的水泥稳定石料基层重新投入到新的施工材料中去，直观的优势就是原材料的使用得到了减少，可以大幅度的减少公路修补成本。在昌九高速工路的修补项目当中，通过使用水泥稳定就地冷修补技术，实际修补成本结果结算，每立方便可以节约资金四十四元，全长16在资金上节省上百万元。使用水泥稳定就地冷再生技术降低成本20%以上，并且随着公路厚度的增加节约的百分比也随之增加。

Highway repair requires a lot of funds, mainly the purchase of raw materials requires a lot of investment. The cement stabilized in-situ cold regeneration technology greatly reduces the funds for the purchase of raw materials. The most intuitive advantage of reusing the damaged cement stabilized stone base into new construction materials is that the use of raw materials has been reduced, which can greatly reduce the cost of highway repair. In the repair project of Changjiu expressway, through the use of cement stabilized on-site cold repair technology and the settlement of actual repair cost results, 44 yuan can be saved for each convenience, with a total length of 16 km, saving millions of yuan in funds. The use of cement stabilized in-situ cold regeneration technology reduces the cost by more than 20%, and the percentage of savings increases with the increase of highway thickness.

（二）施工速度快，对公路交通影响较小

（2） The construction speed is fast and has little impact on highway traffic

水泥稳定就地冷再生技术使用的机械可以在施工时同时完成将破损的水泥稳定碎石基层挖出、添加新的原材料拌和、摊铺到需要修理的公路上这三个重要步骤，这极大减少了公路修补所需要的时间成本。另一方面，水泥稳定就地冷回收技术在进行公路修补的施工当中，可以无视小雨天气，即使在暴雨结束后存在积水也可以进行施工，极大避免了公路修补时间过长这一问题。公路修补时间过长一方面耽误公路交通，另一方面增加了施工成本，对公路修补工作来说十分致命。

The machinery used in the cement stabilized in-situ cold recycling technology can simultaneously complete the three important steps of digging out the damaged cement stabilized macadam base, adding new raw materials, mixing and paving on the road to be repaired, which greatly reduces the time cost required for highway repair. On the other hand, the cement stabilized on-site cold recovery technology can ignore the light rain weather in the construction of highway repair, and the construction can be carried out even if there is ponding after the rainstorm, which greatly avoids the problem of long highway repair time. The road repair time is too long. On the one hand, it delays the road traffic, on the other hand, it increases the construction cost, which is very fatal to the road repair work.

（三）废料回收，绿色

（3） Waste recycling, green environmental protection

如今我们都提倡绿色、节约资源的理念，再生无疑是符合这一理念的方法。水泥稳定就地冷再生技术存在两个方面的优势，方面是使用再生材料，就可以大幅度的减少新材料的使用，建设部门所使用的石油资源、石料资源等等都是资源。因此，再生材料的产生和应用，对于原材料的节省是对于的重要意义。另一方面使用的再生材料是废弃的垃圾，例如沥青等废料垃圾一旦处理不好就会造成污染，垃圾的堆放也是一项很严重的污染问题。而再生材料可以将本是垃圾的废料重新利用起来，不仅节约资源，更加重要的是绿色，不需要额外的对废料进行处理，对地球的资源和环境更好地进行保护。

Nowadays, we all advocate the concept of green environmental protection and resource conservation, and regeneration is undoubtedly the most consistent method with this concept. Cement stabilized in-situ cold recycling technology has two environmental protection advantages. The first is to use recycled materials, which can greatly reduce the use of new materials. The oil resources and stone resources used by the construction department are non renewable resources. Therefore, the generation and application of recycled materials is of great significance to environmental protection for the saving of raw materials. On the other hand, the recycled materials used are waste garbage, such as asphalt and other wastes. Once the garbage is not handled well, it will cause pollution. The stacking of garbage is also a very serious pollution problem. Recycled materials can reuse the waste that is garbage, which not only saves resources, but also is more important for green environmental protection. There is no need to deal with the waste, so as to better protect the earth's resources and environment.

（一）难以确定原路面施工的材料

（1） It is difficult to comprehensively determine the materials of the original pavement construction

水泥稳定土地冷再生技术中重要的就是对原公路破损材料的识别和再生材料的混合比例。由于原破损公路的材料比例难以识别，进行抽样取点的材料识别工作存在误差，得出来的结果可能代表不了整个公路的材料比例情况。而且对破损公路的水泥稳定碎石基层进行粉碎时，可能会打破已经识别的原材料混合比例。因此，各种各样的误差就有可能导致水泥稳定就地冷再生材料出现预期的结构比例发生偏离的情况。想要避免这种情况就要加大对破损的水泥稳定碎石基层的取样，选用有经验的人员按照规定标准进行反复的实验调查，加大再生材料混合比例的可信程度。

In the cold recycling technology of cement stabilized land, the most important thing is to identify the damaged materials of the original highway and the mixing proportion of recycled materials. As the material proportion of the original damaged highway is difficult to identify, there are errors in the material identification of sampling points, and the results may not represent the material proportion of the whole highway. Moreover, the identified mixing proportion of raw materials may be broken when crushing the cement stabilized macadam base of damaged roads. Therefore, various errors may lead to the deviation of the expected structural proportion of cement stabilized in-situ cold recycled materials. To avoid this situation, it is necessary to increase the sampling of damaged cement stabilized macadam base, select experienced professionals to conduct repeated experimental investigation according to the specified standards, and increase the credibility of the mixing proportion of recycled materials.

（二）就地再生条件不如再生厂质量保证

（2） The local regeneration conditions are not as good as the quality assurance of the regeneration plant

为了加快公路维修进度，水泥稳定就地冷再生技术施工中一般就地对已经破损的水泥稳定碎石基层进行破碎。但是，由于机械限制，不能保证所进行修补的公路材料符合该破碎机械，可能出现离析现象。总的来说，就地进行回收材料的制作，并不如再生材料搅拌厂的材料制作质量。

In order to speed up the progress of highway maintenance, the damaged cement stabilized macadam base is generally broken in situ in the construction of cement stabilized cold recycling technology. However, due to mechanical limitations, it can not be guaranteed that the repaired highway materials meet the crushing machinery, and segregation may occur. In general, the production of recycled materials on site is not as good as that of recycled material mixing plant.