asphalt base course

简明释义

沥青底层

英英释义

例句

1.The thickness of the asphalt base course must meet local regulations for heavy traffic areas.

对于重交通区域，沥青基础层的厚度必须符合当地规定。

2.We are using recycled materials in the asphalt base course to promote sustainability.

我们在沥青基础层中使用回收材料，以促进可持续性。

3.The durability of the pavement largely depends on the quality of the asphalt base course.

路面的耐久性在很大程度上取决于沥青基础层的质量。

4.The construction team laid down the asphalt base course to provide a solid foundation for the road.

施工队铺设了沥青基础层，以为道路提供坚实的基础。

5.Before applying the surface layer, we need to ensure the asphalt base course is properly compacted.

在施加表面层之前，我们需要确保沥青基础层已被适当压实。

作文

The construction of roads is a critical aspect of modern infrastructure, and one of the key components in this process is the use of an asphalt base course. This layer serves as a foundational element that supports the surface layer of the road, ensuring durability and stability. The asphalt base course is designed to distribute the load from traffic evenly across the underlying soil or subgrade, preventing deformation and damage over time.In essence, the asphalt base course acts as a buffer between the heavy loads of vehicles and the softer earth beneath. It is made from a mixture of asphalt and aggregates, which are carefully selected to provide the necessary strength and flexibility. The quality of materials used in the asphalt base course is paramount, as it directly affects the longevity and performance of the entire pavement structure.One of the primary advantages of using an asphalt base course is its ability to withstand varying weather conditions. Asphalt has inherent properties that allow it to expand and contract with temperature changes, which helps prevent cracking and other forms of damage. Additionally, the smooth surface of the asphalt base course facilitates better drainage, reducing the risk of water pooling on the road surface. This is particularly important because standing water can lead to hydroplaning and other hazardous driving conditions.Moreover, the installation of an asphalt base course is relatively quick and efficient compared to other materials, such as concrete. This efficiency not only saves time but also reduces labor costs, making it a preferred choice for many road construction projects. Once the asphalt base course is laid down, it can be covered with a top layer of asphalt, creating a seamless and durable driving surface.Environmental considerations are also becoming increasingly important in road construction. The production of asphalt can generate greenhouse gases; however, advancements in technology have led to more sustainable practices. Recycled asphalt pavement (RAP) can be incorporated into the asphalt base course, reducing the demand for new materials and minimizing waste. This practice not only benefits the environment but also lowers costs for contractors and municipalities.In conclusion, the asphalt base course plays an essential role in the overall performance and longevity of roadways. Its ability to provide a strong, stable foundation while accommodating environmental factors makes it a vital component of modern road construction. As we continue to develop our infrastructure, understanding the significance of the asphalt base course will help us appreciate the engineering behind the roads we travel every day.

道路建设是现代基础设施的关键方面，而这个过程中的一个重要组成部分就是使用沥青基层。这一层作为路面的基础元素，确保了耐久性和稳定性。沥青基层旨在将交通负荷均匀分配到下面的土壤或基底上，防止随着时间的推移而变形和损坏。从本质上讲，沥青基层充当车辆重载与下面较软的土壤之间的缓冲层。它由沥青和骨料的混合物制成，这些材料经过精心选择，以提供必要的强度和灵活性。用于沥青基层的材料质量至关重要，因为它直接影响整个路面结构的使用寿命和性能。使用沥青基层的主要优点之一是其能够承受不同的天气条件。沥青具有固有的特性，允许其随温度变化而膨胀和收缩，从而帮助防止开裂和其他形式的损坏。此外，沥青基层的光滑表面促进了更好的排水，降低了路面上积水的风险。这一点尤为重要，因为积水可能导致水滑和其他危险的驾驶条件。此外，与混凝土等其他材料相比，沥青基层的安装相对快速高效。这种效率不仅节省了时间，还降低了人工成本，使其成为许多道路建设项目的首选。一旦铺设了沥青基层，便可以在其上覆盖一层沥青，形成一个无缝的耐用驾驶表面。环境因素在道路建设中也变得越来越重要。沥青的生产可能产生温室气体；然而，技术的进步导致了更可持续的实践。可以将再生沥青路面（RAP）纳入沥青基层中，从而减少对新材料的需求并最小化废物。这一做法不仅有利于环境，还降低了承包商和市政当局的成本。总之，沥青基层在道路的整体性能和耐久性中发挥着至关重要的作用。它能够提供坚固、稳定的基础，同时适应环境因素，使其成为现代道路建设的重要组成部分。随着我们继续发展基础设施，理解沥青基层的重要性将帮助我们欣赏我们每天行驶的道路背后的工程。