在道路的生命周期中，随着时间的推移和交通荷载的不断作用，路面会逐渐出现各种病害，如裂缝、车辙、坑槽等。为了恢复道路的使用性能，延长其使用寿命，道路养护工作至关重要。而就地冷再生技术，作为一种高效、环保且经济的养护方法，正逐渐在道路工程领域崭露头角。

　　In the lifecycle of roads, with the passage of time and the continuous action of traffic loads, various diseases such as cracks, ruts, potholes, etc. will gradually appear on the road surface. In order to restore the performance and prolong the service life of roads, road maintenance work is crucial. On site cold recycling technology, as an efficient, environmentally friendly, and economical maintenance method, is gradually emerging in the field of road engineering.

　　01就地冷再生技术的核心原理

　　The core principle of on-site cold regeneration technology

　　就地冷再生技术（In-Situ Cold Recycling）是一种直接在原路面上进行的道路修复工艺，通过破碎旧路面材料（沥青层或部分基层），加入再生剂（如泡沫沥青、乳化沥青、水泥等），经拌和、摊铺、压实后形成新的路面结构层。该技术实现旧料100%循环利用，属于绿色可持续的道路养护技术。

　　In Situ Cold Recycling is a road repair process that is directly carried out on the original pavement. By crushing the old pavement materials (asphalt layer or part of the base course), adding regenerants (such as foam asphalt, emulsified asphalt, cement, etc.), a new pavement structure layer is formed after mixing, paving, and compaction. This technology achieves 100% recycling of old materials and belongs to green and sustainable road maintenance technology.

　　以泡沫沥青冷再生为例，其原理是将常温水注入热沥青中，使沥青瞬间膨胀形成大量沥青泡沫 。这些泡沫破裂后与集料接触，化为无数“小颗粒”散布于细集料表面，形成粘有大量沥青的细料。经过拌和压实，细料填充粗料间空隙，让混合料达到稳定状态，从而形成性能良好的路面结构层。

　　Taking the cold recycling of foam asphalt as an example, the principle is to inject normal temperature water into hot asphalt to make asphalt expand instantaneously to form a large amount of asphalt foam. These foam come into contact with the aggregate after breaking and become numerous "small particles" scattered on the surface of the fine aggregate, forming fine aggregate with a large amount of asphalt. After mixing and compacting, fine materials fill the gaps between coarse materials to achieve a stable state of the mixture, thereby forming a high-performance pavement structure layer.

　　02因地制宜：不同就地冷再生技术的选用策略

　　02 Tailored to local conditions: selection strategies for different on-site cold recycling technologies

　　水泥混凝土路面全厚式移动破碎就地冷再生：是指利用移动破碎设备，就地将旧水泥混凝土路面板全厚度破碎成具有一定级配的再生集料（或者通过添加适量的新集料后使再生集料的合成级配满足公路水泥稳定碎石基层的级配要求），然后添加再生剂（通常是水泥，或者掺配一定比例的其它胶凝结合料）、活性剂（如钢渣超微粉等，改善再生结构层的性能）、水后，通过再生机就地拌和成水泥稳定碎石混合料，经初压、整平、终压、养生，最终形成一定厚度的再生水泥稳定（或其它材料稳定）碎石基层（或者中、下面层）。

　　Full thickness mobile crushing on-site cold recycling of cement concrete pavement: refers to the use of mobile crushing equipment to crush the entire thickness of old cement concrete pavement panels into recycled aggregates with a certain grading (or by adding an appropriate amount of new aggregates to make the composite grading of recycled aggregates meet the grading requirements of highway cement stabilized crushed stone base), and then adding recycling agents (usually cement, or mixed with a certain proportion of other cementitious binders), active agents (such as steel slag ultrafine powder, etc., to improve the performance of the recycled structural layer), water, and then mixing them on site with a recycling machine to form a cement stabilized crushed stone mixture. After initial pressing, leveling, final pressing, and curing, a certain thickness of recycled cement stabilized (or other material stabilized) crushed stone base is finally formed. Or the middle and lower layers.

　　沥青路面就地冷再生双层连铺技术：是指使用两套后出料模式的就地冷再生机机组，依次对原沥青路面的沥青面层进行泡沫沥青就地冷再生和水稳基层进行水泥就地冷再生，在水稳基层冷再生层压实后（初凝前）铺设泡沫沥青冷再生混合料，从而双层冷再生一次性完成的沥青路面结构性修复技术。

　　In situ cold recycling double-layer continuous paving technology of asphalt pavement: it refers to the structural repair technology of asphalt pavement that uses two sets of in situ cold recycling machine units in the rear discharge mode to carry out foam asphalt in situ cold recycling on the asphalt surface course of the original asphalt pavement and cement in situ cold recycling on the water stabilized base course in turn. After the cold recycling layer of the water stabilized base course is compacted (before initial setting), foam asphalt cold recycling mixture is paved, so that the double-layer cold recycling can be completed once.

　　本文由  冷再生机租赁 友情奉献.更多有关的知识请点击  https://www.sddhfjx.com/   真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Cold Recycling Machine Rental For more related knowledge, please click https://www.sddhfjx.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.