asphalt concrete base

简明释义

沥青混凝土底层

英英释义

例句

1.Before paving, the engineers inspected the asphalt concrete base for any imperfections.

在铺设之前，工程师检查了沥青混凝土基础是否有任何缺陷。

2.During the maintenance work, we discovered that the asphalt concrete base had settled unevenly.

在维护工作中，我们发现沥青混凝土基础不均匀沉降。

3.The city decided to upgrade the asphalt concrete base to improve drainage and reduce flooding.

市政府决定升级沥青混凝土基础以改善排水并减少洪水。

4.A well-constructed asphalt concrete base can significantly extend the lifespan of the pavement.

一个良好构建的沥青混凝土基础可以显著延长路面的使用寿命。

5.The road construction project requires a strong asphalt concrete base to support heavy traffic.

该道路施工项目需要一个坚固的沥青混凝土基础来支撑重型交通。

作文

The construction of roads and highways is a critical aspect of modern infrastructure, and one of the most important materials used in this process is asphalt. Specifically, the term asphalt concrete base refers to a layer of material that serves as a foundation for road surfaces. This layer is essential because it provides stability and strength to the overall structure of the pavement. The asphalt concrete base consists of a mixture of asphalt binder and aggregates, which are combined to create a durable and resilient surface. In many cases, the asphalt concrete base is laid over a subbase layer, which may consist of crushed stone or gravel. This multi-layer approach helps distribute the weight of vehicles more evenly, reducing the risk of cracking and deformation over time. Engineers carefully design the thickness and composition of the asphalt concrete base to accommodate the expected traffic loads and environmental conditions. One of the key advantages of using an asphalt concrete base is its ability to withstand harsh weather conditions. Asphalt has excellent waterproofing properties, which means that it can prevent water from penetrating the underlying layers of the pavement. This is crucial in preventing damage caused by freeze-thaw cycles, which can lead to potholes and other forms of deterioration. Additionally, the flexibility of asphalt allows it to expand and contract with temperature changes, minimizing the risk of cracking. Another benefit of the asphalt concrete base is its relatively quick installation process. Unlike concrete, which requires a longer curing time, asphalt can be laid and opened to traffic within a matter of hours. This efficiency is particularly important in urban areas where minimizing disruption is a priority. Furthermore, the use of recycled asphalt in the asphalt concrete base contributes to sustainable construction practices, reducing waste and conserving resources. However, it is important to note that the longevity of an asphalt concrete base depends on proper maintenance. Regular inspections and timely repairs can significantly extend the life of the pavement. For instance, sealcoating can protect the surface from UV rays and chemical spills, while crack filling can prevent moisture infiltration. In conclusion, the asphalt concrete base plays a vital role in the construction and maintenance of roadways. Its unique properties make it an ideal choice for creating strong, durable, and flexible pavement structures. As cities continue to grow and the demand for efficient transportation systems increases, understanding the importance of the asphalt concrete base will be crucial for engineers and planners alike. By investing in quality materials and maintenance practices, we can ensure that our roadways remain safe and functional for years to come.

道路和高速公路的建设是现代基础设施的重要方面，而在这一过程中使用的最重要材料之一就是沥青。具体而言，术语沥青混凝土基层指的是作为路面基础的一层材料。这一层是至关重要的，因为它为路面的整体结构提供了稳定性和强度。沥青混凝土基层由沥青粘合剂和骨料的混合物构成，这些成分结合在一起形成耐用且有韧性的表面。在许多情况下，沥青混凝土基层被铺设在一个底基层之上，该底基层可能由碎石或砾石组成。这种多层结构有助于更均匀地分布车辆的重量，减少随着时间推移而发生开裂和变形的风险。工程师们仔细设计沥青混凝土基层的厚度和组成，以适应预期的交通负荷和环境条件。使用沥青混凝土基层的一个主要优点是其能够承受恶劣的天气条件。沥青具有优良的防水性能，这意味着它可以防止水渗透到路面的下层。这对于防止由于冻融循环造成的损坏至关重要，这种损坏可能导致坑洞和其他形式的退化。此外，沥青的柔韧性使其能够随温度变化而膨胀和收缩，从而最大限度地降低开裂的风险。沥青混凝土基层的另一个好处是其相对较快的安装过程。与混凝土需要更长的固化时间不同，沥青可以在几小时内铺设并开放给交通使用。这种效率在城市地区尤为重要，在这些地方，尽量减少干扰是一项优先事项。此外，在沥青混凝土基层中使用回收沥青有助于可持续建筑实践，减少浪费和节约资源。然而，需要注意的是，沥青混凝土基层的使用寿命取决于适当的维护。定期检查和及时修复可以显著延长路面的使用寿命。例如，密封涂层可以保护表面免受紫外线和化学溢出的影响，而裂缝填补可以防止水分渗透。总之，沥青混凝土基层在道路的建设和维护中发挥着至关重要的作用。其独特的特性使其成为创建强大、耐用和灵活的路面结构的理想选择。随着城市的不断发展以及对高效交通系统的需求增加，了解沥青混凝土基层的重要性对于工程师和规划者来说将至关重要。通过投资优质材料和维护实践，我们可以确保我们的道路在未来多年内保持安全和功能。