行业资讯
冷再生机使用的冷再生材料成形事项
来源：https://www.sddhfjx.com/ 日期：2023-05-24
随着我国大量的路面进入维修期，路面冷再生技术会得到更广泛的使用。冷再生材料开始一般作为基层使用，目前逐步作为下面层使用；在我国冷再生施工中，水泥作为再生剂较多其实验方法已经较为统一，主要的参考传统的半刚性材料。
As a large number of road surfaces in our country enter the maintenance period, cold pavement regeneration technology will be more widely used. Cold recycled materials began to be generally used as base layers, and are now gradually being used as lower layers; In China's cold recycling construction, cement is widely used as a recycling agent, and its experimental methods have been relatively unified, mainly referring to traditional semi rigid materials.
冷再生机租赁厂家认为冷再生材料的性质与传统道路材料不完全相同，因而对成形的要求也不完全相同。冷再生材料按再生剂大致可以区分为两类：无机再生剂和沥青再生剂，沥青再生时往往加入少量水泥以提高其抗水损坏能力。
Cold recycling machine rental manufacturers believe that the properties of cold recycling materials are not completely the same as traditional road materials, and therefore the requirements for forming are not entirely the same. Cold recycled materials can be roughly divided into two types according to the recycling agent: inorganic recycling agent and asphalt recycling agent. During asphalt recycling, a small amount of cement is often added to improve its resistance to water damage.
常用的无机再生剂是水泥，其他还有二灰、水泥粉煤灰等。无机稳定冷再生一般按照传统的半刚性材料进行成形和养生。常温下进行重型击实试验或者振动击实试验，在20℃或者25℃下养生7天。
The commonly used inorganic regenerant is cement, and there are other types such as fly ash and cement fly ash. Inorganic stable cold regeneration is generally formed and cured using traditional semi rigid materials. Conduct heavy compaction test or vibration compaction test at room temperature, and maintain for 7 days at 20 ℃ or 25 ℃.
通过含水量-强度关系确定佳含水量。沥青稳定剂冷再生时的情况比较复杂，尚无统一方法。冷再生材料组成设计方法常见的方法是用击实法确定佳液体量，用马歇尔稳定度、干劈裂强度、湿劈裂强度中的一个或几个达到优来确定沥青用量。
Determine the optimal water content through the relationship between water content and strength. The situation during cold regeneration of asphalt stabilizers is relatively complex, and there is no unified method. The common method for designing the composition of cold recycled materials is to use the compaction method to determine the optimal liquid volume, and to use one or more of Marshall stability, dry splitting strength, and wet splitting strength to determine the asphalt dosage.
目前国内的冷再生道路其中使用较多的结构有热拌沥青混合料层+再生层+半刚性层和热拌沥青混合料层+再生层。
At present, the structures commonly used in cold recycled roads in China include hot mix asphalt mixture layer+recycled layer+semi rigid layer and hot mix asphalt mixture layer+recycled layer.
冷再生对于裂缝、永久变形、表面破坏都有很好的消除能力。加之我国普遍采用半刚性基层沥青路面，基层存在裂缝问题，有时需要面层基层同时维修，这时冷再生法尤为合适。还有什么问题就来我们网站https://www.sddhfjx.com咨询吧！
Cold regeneration has a good ability to eliminate cracks, permanent deformation, and surface damage. In addition, semi rigid base asphalt pavement is commonly used in our country, and there are cracks in the base layer. Sometimes, it is necessary to maintain the surface layer and base layer simultaneously. In this case, the cold recycling method is particularly suitable. If you have any further questions, please come to our website https://www.sddhfjx.com Consult!
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