冷再生技術適用于大部分舊瀝青混凝土道路大修改造工程，我們需要對舊路進行詳細調查，主要包括以下內容：

Cold recycling technology is applicable to most of the old asphalt concrete road overhaul and reconstruction projects. We need to conduct a detailed investigation of the old road, mainly including the following:

（1）多年來對舊路結構進行調查和修復改造，了解路面病害，包括變形、裂縫、邊緣損壞等。

(1) Over the years, the old road structure has been investigated, repaired and reconstructed to understand the pavement diseases, including deformation, cracks, edge damage, etc.

（2）對舊路進行撓度檢測，分析舊路的破壞情況和承載力，確定舊路基層冷再生的必要性。

(2) The deflection of the old road is tested, the damage and bearing capacity of the old road are analyzed, and the necessity of cold regeneration of the old road base is determined.

（3）鉆芯確定舊路結構層的厚度和材料的工程特性。

(3) Drill the core to determine the thickness of the structural layer of the old road and the engineering characteristics of the material.

盡管現場冷再生的應用范圍受到路面標高的限制，但與傳統的施工方法相比，在大多數普通道路改造中仍具有許多優點，冷再生機出租廠家介紹如下：

Although the application scope of on-site cold recycling is limited by the road surface elevation, compared with the traditional construction method, it still has many advantages in most ordinary road reconstruction. The cold recycling machine rental manufacturer is as follows:

（1）國外一些成本較低的建筑材料表明，與傳統的施工方法相比，再生層厚度不同，成本可降低20%~46%，因為可以充分利用舊路料。厚度越深，成本降低越多。根據我省該施工方法定額測算結果，確定該技術可降低工程造價。

(1) Some foreign building materials with low cost show that compared with traditional construction methods, the thickness of recycled layer is different, and the cost can be reduced by 20%~46%, because the old road materials can be fully utilized. The deeper the thickness, the lower the cost. According to the calculation results of the construction method quota in our province, it is determined that this technology can reduce the project cost.

（2）由于舊路面材料全部在當地使用，工序簡單，省去了6家工廠的開挖、運輸、加工、回填等一系列工作，大大簡化了施工工序。

(2) As the old pavement materials are all used locally, the process is simple, which saves a series of work such as excavation, transportation, processing and backfilling in six factories, greatly simplifying the construction process.

（3）保護環境和資源，因為舊材料可以就地充分利用，減少新材料的開采，不存在舊材料運輸和隨意處置廢物的問題。施工過程中無粉塵和廢氣污染，節約資源，保護環境。因此，有人稱之為“綠色”建筑技術。

(3) Protect the environment and resources, because old materials can be fully used on the spot, reduce the exploitation of new materials, and there is no problem of old materials transportation and waste disposal at will. There is no dust and waste gas pollution during the construction process, saving resources and protecting the environment. Therefore, some people call it "green" building technology.

（4）由于現場冷再生機工藝簡單，施工設備很少，交通施工可以不間斷進行。它對交通干擾反應不敏感。

(4) Due to the simple process of the on-site cold regenerator and the few construction equipment, the traffic construction can be carried out without interruption. It is insensitive to traffic interference.

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