道路地冷再生屬于道路維修、改造的范疇，它主要解決瀝青路面上基層破損的問題。具體講，道路冷再生是指充分利用現有瀝青道路舊鋪層材料（面層與基層）必要時加入部分新骨料，并按比例加入一定量的添加劑（水泥、泡沫瀝青、乳化瀝青、石灰、粉煤灰等）在自然環境溫度下地連續地完成材料的銑刨、破碎、拌和、攤鋪及壓實成型，從而修筑出具有所需性能質量的新基層的作業過程

Road cold regeneration belongs to the category of road maintenance and renovation, which mainly solves the problem of damage to the base layer of asphalt pavement. Specifically, road cold recycling refers to making full use of the old paving materials (surface course and base course) of existing asphalt roads, adding some new aggregates when necessary, and adding a certain amount of additives (cement, foam asphalt, emulsified asphalt, lime, fly ash, etc.) in proportion to continuously complete the milling, crushing, mixing, paving and compaction of materials at natural ambient temperature, The process of constructing a new base with the required performance and quality

（1）設計施工規范與驗收評定標準

(1) Design and construction specifications and acceptance evaluation standards

鑒于瀝青路面再生具有顯著的經濟效益和社會環境效益，應該廣泛應用，同時，隨著我國高等級瀝青路面增多，今后必將面臨更多的舊路面再生利用的問題。因此，怎樣現有研究成果的基礎上有組織地再對該項技術進行的、系統的整理加工，并進行必要的試驗驗證，使該項技術達到規范和標準化，用以指導的道路養護工程建設項目，是擺在我們面前的一項重要任務。

Given that asphalt pavement regeneration has significant economic and social environmental benefits, it should be widely applied. At the same time, with the increase of high-grade asphalt pavement in China, it will inevitably face more problems in the recycling and utilization of old pavement in the future. Therefore, it is an important task for us to systematically organize and process the technology based on existing research results, and conduct necessary experimental verification to achieve standardization and standardization of the technology, in order to guide road maintenance engineering construction projects.

（2）再生劑的規格化與系列化

(2) Standardization and Serialization of Regenerants

國外再生劑在都是化工部門研究提供的，我國石油部門目前尚未能顧及。由于過去我國公路大部分瀝青路面結構厚度較薄，一般不用再利用，所以對再生劑總的需求量不大。然而，隨著我國公路建設的發展，今后瀝青路面再生利用作為公路的一項日常應用技術，對再生劑的需求量必將大大增加，為此，擴大再生劑的料源和品種，使之規格化、系列化、將是石化部門和公路部門的共同研究課題。

Regenerants from foreign countries are all provided by the chemical industry sector, but the petroleum sector in China has not yet taken them into consideration. Due to the thin thickness of most asphalt pavement structures in China's highways in the past, they were generally not reused, so the total demand for rejuvenators was not high. However, with the development of highway construction in our country, the recycling and utilization of asphalt pavement will become a daily application technology for highways in the future, and the demand for rejuvenators will greatly increase. Therefore, expanding the sources and varieties of rejuvenators, making them standardized and serialized, will be a joint research topic for the petrochemical and highway departments.

（3）舊瀝青再生效果的檢測

(3) Detection of the regeneration effect of old asphalt

舊料在熱態下，舊瀝青呈熔融狀態，能夠與液態的新瀝青交融混和而成。然而，這僅是一種理論推測，實際交隔混和的情況到底如何，并無法得知。雖然以再生混合料的物理力學性能試驗可間接分析再生效果的優劣，但仍不是一種直觀的檢測方法。為此，必須研究方便而快速的檢測方法。

When the old material is in a hot state, the old asphalt is in a molten state and can be mixed with liquid new asphalt to form a mixture. However, this is only a theoretical speculation, and it is not known what the actual situation of mixing is. Although testing the physical and mechanical properties of recycled mixtures can indirectly analyze the effectiveness of regeneration, it is still not an intuitive detection method. Therefore, it is necessary to study convenient and fast detection methods.

（4）再生機械

(4) Regenerative machinery

鋪筑再生瀝青路面，工序多，工藝復雜，既要增加用工，又相當麻煩，以致使有些人望而卻步。因此，如何提高施工機械化水平，減輕手工勞動，是瀝青路面再生技術能否大面積推廣的關鍵。大面積鋪筑再生瀝青路面，迫切需要路面翻挖機械，舊料破碎、篩分機械，混合料拌和機械等。既要有適于集中廠拌的大型機械，又要有適于養路部門使用的各種小型機具。積極組織力量，制訂計劃，切實抓好各種再生機械的研制和生產，是刻不容緩。

Paving recycled asphalt pavement involves multiple processes and complex processes, which not only increase labor but also make it quite troublesome, causing some people to hesitate. Therefore, how to improve the level of construction mechanization and reduce manual labor is the key to whether the asphalt pavement regeneration technology can be widely promoted. The large-scale construction of recycled asphalt pavement urgently requires road excavation machinery, old material crushing and screening machinery, and mixture mixing machinery. There should be both large machinery suitable for centralized plant mixing and various small machinery suitable for use by road maintenance departments. It is urgent to actively organize forces, formulate plans, and effectively carry out the research and production of various recycled machinery.

采用瀝青再生技術，可以充分利用舊料，通過選擇適當的配比及新舊料的摻和比例，可以再生得到質量相當不錯的再生混和料。初步的研究和實踐均表明，這種再生混合料可以使用于高等級公路的瀝青面層。同時，利用瀝青再生技術可以取得相當可觀的經濟效益和的社會效益。

By using asphalt regeneration technology, old materials can be fully utilized. By selecting appropriate proportions and blending ratios of new and old materials, high-quality recycled mixtures can be obtained through regeneration. Preliminary research and practice have shown that this recycled mixture can be used in the asphalt surface layer of high-grade highways. Meanwhile, utilizing asphalt regeneration technology can achieve considerable economic and social benefits.

（5）瀝青添加劑特性及其混合料路用性能研究

(5) Research on the Characteristics of Asphalt Additives and the Road Performance of Their Mixtures

針對瀝青路面在使用過程中出現的諸多病害，人們進行了大量的研究，并指出摻入瀝青添加劑可明顯改善瀝青路面的使用性能；除了常用的樹脂類、橡膠類和共聚物類瀝青改性劑外，近年來上又出現了一些新型添加劑。

A large amount of research has been conducted on the various diseases that occur in the use of asphalt pavement, and it has been pointed out that adding asphalt additives can significantly improve the performance of asphalt pavement; In addition to commonly used resin, rubber, and copolymer asphalt modifiers, some new additives have emerged in recent years.