就地冷再生攤鋪工藝

　　On site cold recycling paving process

　　雖然生產(chǎn)冷再生材料有幾種不同的方法，但其攤鋪工藝與典型的銑刨回填工藝相似。

　　Although there are several different methods for producing cold recycled materials, their paving process is similar to typical milling and backfilling processes.

　　在傳統(tǒng)的銑刨回填工藝中，攤鋪?zhàn)鳂I(yè)由銑刨機(jī)將銑刨好的材料送入卡車。廢料被運(yùn)走，工作人員跟隨銑刨機(jī)清理剩余的灰塵和碎屑。然后，攤鋪人員跟進(jìn)鋪設(shè)新的瀝青。在施工現(xiàn)場(chǎng)、瀝青攪拌站和垃圾填埋場(chǎng)或再生瀝青（RAP）料堆之間來回運(yùn)輸材料可能需要數(shù)百卡車。

　　In the traditional milling and backfilling process, the paving operation first involves the milling machine feeding the milled material into the truck. The waste was transported away, and the staff followed the milling machine to clean up the remaining dust and debris. Then, the paving personnel follow up to lay new asphalt. Transporting materials back and forth between construction sites, asphalt mixing plants, and landfills or recycled asphalt (RAP) piles may require hundreds of trucks.

　　采用就地冷再生工藝時(shí)，幾乎所有材料都留在施工現(xiàn)場(chǎng)。再生機(jī)將瀝青粉碎，然后將粘合劑注入材料中，材料隨后被輸送到攤鋪機(jī)。攤鋪機(jī)緊跟在再生機(jī)后面運(yùn)行，將材料鋪回原位，兩到三個(gè)壓路機(jī)跟在后面進(jìn)行壓實(shí)。再生材料壓實(shí)后，傳統(tǒng)的攤鋪機(jī)便會(huì)鋪設(shè)一層磨耗層——厚度為一英寸半到兩英寸的熱拌瀝青路面。

　　When using on-site cold recycling technology, almost all materials are left at the construction site. The recycling machine crushes the asphalt and then injects the binder into the material, which is then transported to the paver. The paver runs closely behind the rejuvenator, laying the material back in place, and two to three rollers follow behind to compact it. After compacting the recycled materials, traditional pavers will lay a layer of wear layer - a hot mix asphalt pavement with a thickness of one and a half inches to two inches.

　　泡沫瀝青這種粘合劑是將再生瀝青 (RAP) 材料打造成柔韌耐用基層的秘訣。它由加熱 175 攝氏度的普通瀝青制成，并在高壓下注入少量水和空氣，使其發(fā)泡膨脹。泡沫瀝青被注入冷再生機(jī)內(nèi)的再生瀝青 (RAP) 中，終產(chǎn)品被稱為瀝青穩(wěn)定材料 (BSM)。

　　Foam asphalt is the secret of making recycled asphalt (RAP) material into flexible and durable base course. It is made of ordinary asphalt heated to 175 degrees Celsius and injected with a small amount of water and air under high pressure to make it foam and expand. The foam asphalt is injected into the recycled asphalt (RAP) in the cold recycling machine, and the final product is called asphalt stabilized material (BSM).

　　這一工藝效率顯著提高，并節(jié)省了與傳統(tǒng)鋪路過程相關(guān)的運(yùn)輸和材料成本。Stahl的熱情顯而易見：“當(dāng)我們進(jìn)行再生時(shí)，好處是于幾乎所有材料，95%的材料，都能夠保持原位?！?/p>

　　This process significantly improves efficiency and saves transportation and material costs associated with traditional paving processes. Stahl's enthusiasm is evident: "When we carry out regeneration, the benefit is that almost all materials, 95% of them, can remain in place

　　Wirtgen提供CR系列和WR系列冷回收機(jī)。CR系列機(jī)器需要傳統(tǒng)的鋪路機(jī)，而WR系列冷回收機(jī)和土壤穩(wěn)定機(jī)則不需要。根據(jù)斯塔爾的說法，對(duì)于將骨料回收到瀝青中的812英寸深度的典型全深度再生（FDR）應(yīng)用，其中骨料被回收用于瀝青，設(shè)備組將使用一臺(tái)橡膠輪胎WR系列機(jī)，以及一臺(tái)羊腳壓路機(jī)和一臺(tái)平地機(jī)，然后再加兩臺(tái)壓實(shí)機(jī)。羊腳壓實(shí)機(jī)是實(shí)現(xiàn)該深度厚度的適當(dāng)壓實(shí)所必需的。

　　Wirtgen offers CR series and WR series cold recycling machines. The CR series machines require traditional paving machines, while the WR series cold recycling machines and soil stabilizers do not. According to Starr, for typical full depth recycling (FDR) applications that recycle aggregate into asphalt at depths of 8 to 12 inches, where the aggregate is recycled for asphalt, the equipment team will use a rubber tire WR series machine, as well as a sheep foot roller and a grader, followed by two compactors. The sheep foot compactor is necessary to achieve appropriate compaction at this depth and thickness.

　　CR機(jī)器非常適合三到五英寸的部分深度更換。需要更少的整體壓實(shí)，可以通過在鋪路機(jī)上安裝標(biāo)準(zhǔn)振動(dòng)熨平板來實(shí)現(xiàn)，然后使用壓路機(jī)即可完成。在這種情況下，無需使用羊腳壓路機(jī)或平地機(jī)。

　　CR machines are very suitable for partial depth replacement of three to five inches. Less overall compaction is required, which can be achieved by installing a standard vibrating screed on the paving machine and then using the roller to complete it. In this case, there is no need to use a sheep foot roller or grader.

　　當(dāng)與高密度熨平板配對(duì)時(shí)，CR機(jī)器可用于FDR，但這并不常見。Stahl將這種應(yīng)用稱為“攤鋪機(jī)鋪設(shè)FDR”。

　　When paired with high-density ironing boards, CR machines can be used for FDR, but this is not common. Stahl refers to this application as "paver laying FDR".

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