經(jīng)研究和測試驗(yàn)證的冷再生道路使用壽命

　　The service life of cold recycling roads verified through research and testing

　　冷再生的真正價(jià)值在于道路的使用壽命。

　　The true value of cold recycling lies in the service life of roads.

　　熱拌合瀝青和混凝土是粘合材料，在持續(xù)應(yīng)力下不會提供很大的柔韌性。冷再生材料是非連續(xù)粘合材料，可以防止開裂。它具有很大的柔韌性，使裂縫難以在持續(xù)使用中擴(kuò)展。

　　Hot mix asphalt and concrete are bonding materials that do not provide significant flexibility under sustained stress. Cold recycled materials are non continuous bonding materials that can prevent cracking. It has great flexibility, making it difficult for cracks to propagate during continuous use.

　　學(xué)術(shù)界對冷再生的可行性進(jìn)行了深入研究，其中包括致力于改進(jìn)此類道路設(shè)計(jì)、施工和維護(hù)的研究。研究人員研究來自施工現(xiàn)場和已投入使用道路的樣本，以分析其性能并測試材料的使用壽命。他們也在研究實(shí)驗(yàn)室進(jìn)行自己的實(shí)驗(yàn)。

　　The academic community has conducted in-depth research on the feasibility of cold recycling, including studies dedicated to improving the design, construction, and maintenance of such roads. Researchers study samples from construction sites and roads that have been put into use to analyze their performance and test the service life of materials. They are also conducting their own experiments in the research laboratory.

　　美國幾家機(jī)構(gòu)都在研究永久性路面，包括位于阿拉巴馬州奧本大學(xué)的國家瀝青技術(shù)中心 (NCAT) 路面試驗(yàn)跑道。在測試跑道上，研究人員比較不同的鋪設(shè)路段，以確定不同重新鋪設(shè)方法的壽命。多家研究機(jī)構(gòu)開展的加速路面測試包括在測試路段上持續(xù)運(yùn)行高流量模擬交通，在數(shù)月的時(shí)間內(nèi)快速加載測試跑道上數(shù)年甚至數(shù)十年的典型交通量。研究人員研究跑道樣本，以了解道路的老化速度、老化方式以及預(yù)期的使用壽命。

　　Several institutions in the United States are researching permanent pavement, including the National Asphalt Technology Center (NCAT) pavement test track located at Auburn University in Alabama. On the test track, researchers compared different paving sections to determine the lifespan of different re paving methods. The accelerated road testing conducted by multiple research institutions includes continuously running high flow simulated traffic on the test section, rapidly loading typical traffic volumes on the test track for years or even decades over several months. Researchers study runway samples to understand the aging speed, aging mode, and expected service life of roads.

　　據(jù)奧本大學(xué)助理教授Ben Bowers介紹，NCAT研究人員在測試跑到上裝載了一段FDR路面，流量為九年的交通量。FDR 路面保持良好，沒有明顯變化的跡象，可以被視為永久性路面，只需定期進(jìn)行加鋪。

　　According to Ben Bowers, assistant professor at Auburn University, NCAT researchers loaded a section of FDR road surface with a traffic volume of nine years on the test run. The FDR road surface remains in good condition with no signs of change and can be considered a permanent road surface, requiring only regular paving.

　　多家研究機(jī)構(gòu)已證實(shí)了這種超長使用壽命。

　　Multiple research institutions have confirmed this ultra long service life.

　　加州大學(xué)戴維斯分校人行道研究中心副主任David Jones說：“我們的研究測試、知識、路面建模、對材料性能的理解意味著我們可以自信地預(yù)測路面的使用壽命可達(dá) 80 年?！?/p>

　　Our research testing, knowledge, pavement modeling, and understanding of material properties mean that we can confidently predict the service life of road surfaces up to 80 years, "said David Jones, Deputy Director of the Pedestrian Research Center at the University of California, Davis

　　為了讓道路所有者對其冷再生項(xiàng)目的路面壽命更加有信心，維特根制造了一個實(shí)驗(yàn)室規(guī)模的泡沫瀝青攪拌站和一臺實(shí)驗(yàn)室規(guī)模的雙臥軸強(qiáng)制式攪拌機(jī)，可以在實(shí)驗(yàn)室中模擬冷再生，在施工項(xiàng)目開始前生產(chǎn)測試樣品，以確保非常終結(jié)果符合預(yù)期。長期解決方案使所有利益相關(guān)者受益

　　In order to make road owners more confident about the pavement life of their cold recycling projects, Wittgen has built a laboratory scale foam asphalt mixing plant and a laboratory scale double horizontal shaft forced mixer, which can simulate cold recycling in the laboratory and produce test samples before the start of the construction project to ensure that the final results meet expectations. Long term solutions benefit all stakeholders

　　就地冷再生技術(shù)為從城市采石場中挖掘可重復(fù)利用的材料，用于建設(shè)更具韌性的基礎(chǔ)設(shè)施提供了絕佳的機(jī)會。然而，采用該技術(shù)需要長遠(yuǎn)的思考，并樂于嘗試新方法。就地冷再生技術(shù)經(jīng)久耐用，值得承包商和道路所有者關(guān)注，并認(rèn)為它能夠節(jié)省成本、減少排放、提高安全性，并打造出經(jīng)久耐用、惠及子孫后代的道路。

　　The in-situ cold recycling technology provides an excellent opportunity to excavate reusable materials from urban quarries for the construction of more resilient infrastructure. However, adopting this technology requires long-term thinking and a willingness to try new methods. The on-site cold recycling technology is durable and worthy of the attention of contractors and road owners, who believe that it can save costs, reduce emissions, improve safety, and create roads that are durable and beneficial to future generations.

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