Due to the obvious shortcomings of the traditional pavement maintenance process, such as high cost, long construction period and long-time traffic interruption, and the three major problems of occupying the stacking yard, causing environmental pollution and wasting a large amount of valuable non renewable resources caused by the waste of old asphalt pavement materials, China has gradually abandoned the pavement maintenance method of digging out the original old asphalt pavement and paving a new asphalt surface. Nowadays, for the maintenance of different grades of asphalt pavement, all parts of the country are actively promoting and exploring the in-situ cold regeneration technology, among which the full depth (thick) in-situ cold regeneration technology has been widely used in recent years.

冷再生機(jī)出租具有良好的循環(huán)經(jīng)濟(jì)效益和效應(yīng)，因此越來越受到公路養(yǎng)護(hù)行業(yè)的重視，并已成為瀝青路面養(yǎng)護(hù)技術(shù)研究與發(fā)展的一個重要方向。目前的就地冷再生通過將瀝青層材料、基層材料再生料混合作為滿足所需承載力的基層材料使用，降低了再生料的使用等級。

Cold recycling machine rental has good circular economic benefits and environmental protection effects. Therefore, it has attracted more and more attention from the highway maintenance industry, and has become an important direction for the research and development of asphalt pavement maintenance technology. At present, in-situ cold recycling reduces the use level of recycled materials by mixing asphalt layer materials, base course materials and recycled materials as base course materials to meet the required bearing capacity.

冷再生機(jī)租賃廠家對這些路面的選擇也是非常在意的，因為這些材料雖然具有一定的強(qiáng)度、剛度和水穩(wěn)性，但由于是將再生料中的舊瀝青與舊混合料一起作為骨料使用，沒有考慮再生混合料中舊瀝青的性能恢復(fù)，只能在縣、鄉(xiāng)村道路翻修或國、不能在高等級公路的瀝青面層推廣應(yīng)用。老化瀝青混合料相對性能優(yōu)良的新瀝青結(jié)合料，其粘性過高、柔韌性不足等常規(guī)路用性能上的不足，嚴(yán)重耽誤了再生料的使用。

The cold recycling machine rental manufacturer is also very concerned about the selection of these pavements, because although these materials have certain strength, stiffness and water stability, they use the old asphalt in the recycled material together with the old mixture as aggregate, and do not consider the performance recovery of the old asphalt in the recycled mixture. They can only be popularized and applied in the renovation of county and rural roads or in the asphalt surface of high-grade highways in China. The new asphalt binder with excellent relative performance of aged asphalt mixture has some shortcomings in conventional road performance, such as high viscosity and insufficient flexibility, which seriously delays the use of recycled materials.

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