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現場熱再生的特點及優缺點
來源：http://m.hlbeyb.com/ 日期：2024-02-21 發布人：
根據路面破損情況的不同和對修復后路面質量等級的不同要求，就地熱再生技術應用的施工工藝主要有三種：整形熱再生法、重鋪熱再生法、復拌熱再生法。
According to the different conditions of road damage and the different requirements for the quality level of repaired road surfaces, there are three main construction processes for the application of geothermal regeneration technology: shaping hot regeneration method, re laying hot regeneration method, and re mixing hot regeneration method.
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。就地熱再生方面，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。這種工藝方法簡單方便，多用于基層承載能力良好、面層因疲勞而龜裂的路段，特別適用于老化不太嚴重，但平整度較差的高等級公路瀝青路面上面層病害的修復，可恢復瀝青上面層物理力學性能，修復瀝青路面的車轍。
On site thermal regeneration is a process of repairing damaged road surfaces in situ, which softens the road surface by heating, scoops up road waste, and mixes it with asphalt binder. Sometimes, new aggregates may also need to be added. Then lay the recycled material back on the original road surface. In terms of geothermal regeneration, on-site regeneration of old asphalt pavement can be achieved in one go, combining raw materials with the road surface that needs to be renovated; Alternatively, it can be completed in two stages, which involves first re compacting the recycled material and then laying an additional layer of wear layer on top. This process method is simple and convenient, and is commonly used in road sections with good bearing capacity of the base layer and surface cracking due to fatigue. It is particularly suitable for repairing the upper layer diseases of asphalt pavement on high-grade highways with less severe aging but poor smoothness. It can restore the physical and mechanical properties of the upper layer of asphalt and repair the ruts of asphalt pavement.
現場熱再生工藝的優點是施工速度快，而且原路面材料就地實現再生利用，節省了材料轉運費用。但這種工藝的缺點是再生深度通常在2.5～6cm，難以深入；對原路面材料的級配調整幅度有限，也難以去除不適合再生的舊料；再生后路面的質量穩定性和耐久性有所減弱。
The advantage of on-site thermal regeneration technology is fast construction speed, and the original pavement materials can be recycled on site, saving material transportation costs. But the disadvantage of this process is that the regeneration depth is usually between 2.5-6cm, which is difficult to penetrate deeply; The adjustment of the gradation of the original pavement materials is limited, and it is also difficult to remove old materials that are not suitable for regeneration; The quality stability and durability of the regenerated road surface have been weakened.
現場熱再生中舊瀝青混合料的加熱重熔技術，新加瀝青、再生劑與舊混合料的均勻復拌技術是關鍵問題，在施工工藝中應充分考慮加熱設備和拌和攤鋪設備的作業性能。
The heating and remelting technology of old asphalt mixtures in on-site hot recycling, as well as the uniform re mixing technology of new asphalt, rejuvenators, and old mixtures, are key issues. The operational performance of heating equipment and mixing and paving equipment should be fully considered in the construction process.
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This article is dedicated to the rental of cold recycling machines. For more information, please click: http://m.hlbeyb.com Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned
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