经研究和测试验证的冷再生道路使用寿命

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

　　冷再生的真正价值在于道路的使用寿命。

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

　　热拌合沥青和混凝土是粘合材料，在持续应力下不会提供很大的柔韧性。冷再生材料是非连续粘合材料，可以防止开裂。它具有很大的柔韧性，使裂缝难以在持续使用中扩展。

　　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.

　　学术界对冷再生的可行性进行了深入研究，其中包括致力于改进此类道路设计、施工和维护的研究。研究人员研究来自施工现场和已投入使用道路的样本，以分析其性能并测试材料的使用寿命。他们也在研究实验室进行自己的实验。

　　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.

　　美国几家机构都在研究性路面，包括位于阿拉巴马州奥本大学的沥青技术中心 (NCAT) 路面试验跑道。在测试跑道上，研究人员比较不同的铺设路段，以确定不同重新铺设方法的寿命。多家研究机构开展的加速路面测试包括在测试路段上持续运行高流量模拟交通，在数月的时间内快速加载测试跑道上数年甚数十年的典型交通量。研究人员研究跑道样本，以了解道路的老化速度、老化方式以及预期的使用寿命。

　　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.

　　据奥本大学助理教授Ben Bowers介绍，NCAT研究人员在测试跑到上装载了一段FDR路面，流量为九年的交通量。FDR 路面保持良好，没有任何变化的迹象，可以被视为性路面，只需定期进行加铺。

　　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.

　　多家研究机构已证实了这种超长使用寿命。

　　Multiple research institutions have confirmed this ultra long service life.

　　加州大学戴维斯分校人行道研究中心副主任David Jones说：“我们的研究测试、知识、路面建模、对材料性能的理解意味着我们可以自信地预测路面的使用寿命可达 80 年。”

　　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

　　为了让道路所有者对其冷再生项目的路面寿命更加有信心，维特根制造了一个实验室规模的泡沫沥青搅拌站和一台实验室规模的双卧轴强制式搅拌机，可以在实验室中模拟冷再生，在施工项目开始前生产测试样品，以确保终结果符合预期。长期解决方案使所有利益相关者受益

　　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

　　就地冷再生技术为从城市采石场中挖掘可重复利用的材料，用于建设更具韧性的基础设施提供了的机会。然而，采用该技术需要长远的思考，并乐于尝试新方法。就地冷再生技术经久耐用，值得承包商和道路所有者关注，并认为它能够节省成本、减少排放、提高性，并打造出经久耐用、惠及子孙后代的道路。

　　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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