就地冷再生技术因其造价低廉，节约材料，对交通影响小等优点，在我国应用越来越广泛。下面冷再生机租赁厂家来分析分析就地冷再生机是什么及技术适用条件：

In situ cold regeneration technology is increasingly widely used in China due to its advantages such as low cost, material saving, and minimal impact on transportation. The following is an analysis of what on-site cold regeneration machines are and their technical application conditions from manufacturers who rent cold regeneration machines:

就地冷再生技术的原理

The principle of on-site cold regeneration technology

就地冷再生（ColdIn-p1aceRecycling）技术，是指采用专用就地冷再生设备，对沥青路面进行现场冷铣刨、破碎，加入一定量新集料（必要时）、再生结合料（乳化沥青、泡沫沥青等）、活性填料（水泥、石灰等）和水，在常温下拌和、整平、碾压，一次性实现旧沥青路面再生的技术。

Cold in place recycling technology refers to the technology of on-site cold milling and crushing of asphalt pavement, adding a certain amount of new aggregate (if necessary), recycled binder (emulsified asphalt, foam asphalt, etc.), active filler (water mud, lime, etc.) and water, mixing, leveling and rolling at normal temperature, and realizing the regeneration of old asphalt pavement at one time.

就地冷再生机，就是对应就地冷再生技术的专用现场冷再生设备，通常为大功率自行式移动设备，除了配备有行走总成、再生层（包括沥青层或稳定层）物料铣刨、再生料粒径控制、铣刨深度控制等基本功能的机械结构和控制单元外，设备上会根据再生结合料的不同，装配有专用再生结合料系统，这个系统根据再生结合料特性可实现再生结合料发生、输送及配合比例控制等功能。目前，根据再生结合料的不同，就地冷再生机可分为水泥就地冷再生机和沥青就地冷再生机。

The on-site cold regeneration machine is a specialized on-site cold regeneration equipment corresponding to the on-site cold regeneration technology, usually a high-power self-propelled mobile device. In addition to the mechanical structure and control unit equipped with basic functions such as walking assembly, material milling of the regeneration layer (including asphalt layer or stable layer), particle size control of the regeneration material, and milling depth control, the equipment will be equipped with a dedicated regeneration binder system according to the different types of recycled binders, This system can achieve functions such as the generation, transportation, and proportion control of recycled binder based on its characteristics. At present, according to the different types of recycled binders, on-site cold recycling machines can be divided into cement on-site cold recycling machines and asphalt on-site cold recycling machines.

就地冷再生技术适用条件

Applicable conditions for on-site cold regeneration technology

就地冷再生技术总的来说可分为沥青路面面层冷再生技术和全深度再生（即深层复拌冷再生）技术两大类。对于沥青面层就地冷再生技术，路面维护保养适用的路面厚度约为6～13mm。下面三种情况都适用：

In general, on-site cold recycling technology can be divided into two categories: cold recycling technology for asphalt pavement surface layer and full depth recycling (i.e. deep mixing cold recycling) technology. For the on-site cold regeneration technology of asphalt pavement, the applicable pavement thickness for maintenance and upkeep is about 6-13mm. The following three situations apply:

1）由于路面老化、高温损害、疲劳和反射裂纹所造成的路面裂纹。

1) Road surface cracks caused by aging, high-temperature damage, fatigue, and reflective cracks.

2）由于混合料的不稳定性、挤压和粗糙的材料使路面形成车辙所造成的路面变形。

2) The deformation of the road surface caused by rutting due to the instability, compression, and rough materials of the mixture.

3）由于断裂、沥青泛油以及层面之间的粘接力降低所造成的路面完整性破损。全深度就地冷再生技术的适用条件是道路稳定层的再生改造工程。

3) The damage to the integrity of the road surface caused by fractures, asphalt flashing, and reduced adhesion between layers. The applicable condition of the full depth on-site cold regeneration technology is the regeneration and renovation project of the road stability layer.

与沥青面层就地冷再生相比，全深度再生就地冷再生技术的主要特点是能够适应道路深层的再生改造要求，对路面基层进行再生处理时，拌和深度范围一般为10～20cm，处理土基稳定层时，拌和深度可达35～40cm。

Compared with in situ cold regeneration of asphalt pavement, the main feature of the full depth regeneration in situ cold regeneration technology is that it can adapt to the requirements of deep road regeneration and renovation. When regenerating the pavement base, the mixing depth range is generally 10-20cm, and when treating the soil foundation stable layer, the mixing depth can reach 35-40cm.

根据经验，只要混合料中5mm以上的粒料占30%以上，该旧路就有利用其作为再生基层的可能。因为有足够的大骨料就能够形成再生基层的骨架结构，使再生基层具备一定的承载能力。更多相关内容就来我们网站咨询！

Based on experience, as long as more than 30% of the aggregate with a size of 5mm or more in the mixture is used, the old road has the possibility of using it as a recycled base. Because there is enough large aggregate to form the skeleton structure of the recycled base, the recycled base has a certain bearing capacity. For more related content, come to our website consulting service