現場冷再生法是用大功率路面銑刨拌合機將路面混合料在原路面上就地銑刨、翻挖、破碎，再加入穩定劑、水泥、水（或加入乳化瀝青）和骨料同時就地拌合，用路拌機原地拌合，碾壓成型。現場冷再生工藝一般適用于病害嚴重的一級以下公路瀝青路面的翻修、重建，冷再生后的路面一般需要加鋪一定厚度的瀝青罩面。目前應用類型已從初的單純水泥冷再生，逐步豐富形成泡沫瀝青、乳化瀝青冷再生。

　　On site cold recycling method is to use a high-power road milling and mixing machine to mill, excavate, and crush the road mixture on the original road surface, and then add stabilizers, cement, water (or emulsified asphalt), and aggregates for on-site mixing. The road mixture machine is used for on-site mixing, and finally rolled and formed. The on-site cold recycling process is generally suitable for the renovation and reconstruction of asphalt pavements below the first level with severe diseases. After cold recycling, the pavement generally needs to be covered with a certain thickness of asphalt overlay. At present, the application type has gradually enriched from the original simple cement cold recycling to foam asphalt and emulsified asphalt cold recycling.

　　現場熱再生是一種就地修復破損路面的過程，它通過加熱軟化路面，鏟起路面廢料，再和瀝青粘合劑混合，有時可能還需要添加一些新的骨料，然后將再生料重新鋪在原來的路面上。現場熱再生法，可以一次性實現就地舊瀝青路面再生，把原材料和需翻修的路面重新結合；或者是通過兩階段完成，即先將再生料重新壓實，然后在上面再鋪一層磨耗層。

　　On site hot recycling is a process of repairing damaged road surfaces in situ. It softens the road surface by heating it, scoops up road waste, and mixes it with asphalt binder. Sometimes, new aggregates may need to be added, and then the recycled materials are re laid on the original road surface. On site hot recycling method can achieve on-site regeneration of old asphalt pavement in one go, combining raw materials with the pavement that needs to be renovated; Or it can be completed in two stages, that is, first re compacting the recycled material, and then laying a layer of wear layer on top.

　　2015年一級市政單選1：將現狀瀝青耙松，添加再生劑并重新拌合后，直接碾壓成型的施工工藝為（A） ?A、現場冷再生 ??B、現場熱再生 ???C、廠拌冷再生 ???D、廠拌熱再生本題是對冷再生與熱再生區別的考查，熱再生現場是需要加熱軟化路面的，冷再生則不需要加熱，加入添加劑后直接碾壓成型。

　　What is the construction process for directly rolling and shaping the existing asphalt after raking it loose, adding a rejuvenator, and remixing it? A、 On site cold regeneration?? B、 On site hot regeneration??? C、 Factory mixed cold recycling??? D、 Factory mixed hot recycling is a test of the difference between cold recycling and hot recycling. Hot recycling requires heating to soften the road surface, while cold recycling does not require heating and can be directly rolled into shape after adding additives.

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