bitumen macadam

简明释义

沥青碎石路

英英释义

例句

1.After heavy rains, the bitumen macadam surface showed excellent drainage capabilities.

大雨过后，沥青碎石表面展现出了优良的排水能力。

2.The city council decided to use bitumen macadam for the new parking lot due to its cost-effectiveness.

市议会决定在新的停车场使用沥青碎石，因为它具有成本效益。

3.The new road was constructed using bitumen macadam to ensure durability and smoothness.

新道路采用了沥青碎石施工，以确保耐用和平滑。

4.During the maintenance of the highway, workers applied a fresh layer of bitumen macadam to improve traction.

在高速公路的维护过程中，工人们涂抹了一层新的沥青碎石以提高抓地力。

5.The contractor recommended bitumen macadam for the rural roads because it can withstand heavy loads.

承包商推荐在乡村道路上使用沥青碎石，因为它能够承受重载。

作文

The development of modern road construction techniques has significantly transformed the way we build and maintain our highways and streets. One of the most important innovations in this field is the use of bitumen macadam, a method that combines the durability of bitumen with the stability of crushed stone. This technique has been widely adopted due to its effectiveness and cost-efficiency, making it a preferred choice for many civil engineering projects.To understand the significance of bitumen macadam, we must first explore what it entails. The term 'macadam' refers to a type of road construction pioneered by Scottish engineer John Loudon McAdam in the early 19th century. It involves layering crushed stones to create a solid surface for vehicles. However, traditional macadam roads were prone to erosion and degradation over time. The introduction of bitumen as a binding agent revolutionized this process.Bitumen, a viscous black liquid, is derived from the distillation of crude oil. It acts as an adhesive, binding the aggregate materials together and providing a waterproof layer that protects the underlying structure from moisture damage. When mixed with crushed stone, bitumen macadam creates a robust surface that can withstand heavy traffic loads while minimizing wear and tear.One of the key advantages of bitumen macadam is its ability to provide a smooth driving surface. Unlike traditional gravel roads, which can be bumpy and uneven, roads constructed with bitumen macadam offer improved traction and comfort for motorists. This is particularly important in urban areas where traffic congestion is common, as smoother roads can lead to reduced vehicle maintenance costs and increased safety.Moreover, bitumen macadam is highly versatile and can be used in various applications, from residential streets to major highways. Its adaptability makes it suitable for different climates and environmental conditions. In regions with heavy rainfall, the waterproof properties of bitumen help prevent water accumulation on the road surface, reducing the risk of hydroplaning and accidents.Another significant aspect of bitumen macadam is its economic benefits. The materials used in this construction method are often locally sourced, which helps lower transportation costs and supports local economies. Additionally, the longevity of bitumen macadam surfaces means that maintenance and repair costs are minimized over time. This is particularly advantageous for government agencies and municipalities that must manage tight budgets for infrastructure projects.Despite its many benefits, there are some challenges associated with bitumen macadam. The initial installation process can be labor-intensive and requires skilled workers to ensure proper mixing and application of the materials. Furthermore, extreme temperatures can affect the performance of bitumen, leading to issues such as softening in hot weather or brittleness in cold conditions. Therefore, careful consideration must be given to the climatic factors of the region when planning a bitumen macadam project.In conclusion, bitumen macadam represents a significant advancement in road construction technology. Its combination of durability, versatility, and cost-effectiveness makes it an attractive option for a wide range of applications. As we continue to develop our infrastructure, understanding and utilizing methods like bitumen macadam will be crucial in building safe and efficient road systems for the future.

现代道路建设技术的发展显著改变了我们建造和维护高速公路和街道的方式。在这一领域，最重要的创新之一是使用沥青碎石，这种方法将沥青的耐用性与碎石的稳定性结合在一起。由于其有效性和成本效益，这一技术已被广泛采用，成为许多土木工程项目的首选。要理解沥青碎石的重要性，我们首先必须探讨它的含义。术语“碎石”指的是由苏格兰工程师约翰·劳登·麦克亚当在19世纪初提出的一种道路建设类型。它涉及分层铺设碎石，以创建一个坚固的车辆行驶表面。然而，传统的碎石道路容易受到侵蚀和退化。沥青作为粘合剂的引入彻底改变了这一过程。沥青是一种粘稠的黑色液体，来源于原油的蒸馏。它作为一种粘合剂，将集料材料结合在一起，并提供一层防水层，保护基础结构免受潮湿损害。当与碎石混合时，沥青碎石形成一个强韧的表面，可以承受重型交通负荷，同时减少磨损。沥青碎石的一个关键优势是它能够提供平滑的行驶表面。与传统的碎石道路相比，后者可能颠簸不平，用沥青碎石建造的道路为驾驶者提供了更好的牵引力和舒适度。这在交通拥堵的城市地区尤为重要，因为更平滑的道路可以降低车辆维护成本，提高安全性。此外，沥青碎石具有高度的适应性，可用于各种应用，从住宅街道到主要高速公路。它的适应性使其适合不同的气候和环境条件。在降雨量大的地区，沥青的防水特性有助于防止路面上的水积聚，减少水滑和事故的风险。沥青碎石的另一个重要方面是其经济效益。该建设方法中使用的材料通常是本地采购的，这有助于降低运输成本并支持地方经济。此外，沥青碎石表面的耐久性意味着随着时间的推移，维护和修理成本会减少。这对必须管理紧张预算的政府机构和市政当局尤其有利。尽管有许多好处，但沥青碎石也面临一些挑战。初始安装过程可能劳动密集，需要熟练工人确保材料的正确混合和应用。此外，极端温度可能影响沥青的性能，导致在高温下软化或在低温下脆裂。因此，在规划沥青碎石项目时，必须仔细考虑该地区的气候因素。总之，沥青碎石代表了道路建设技术的重大进步。其耐用性、适应性和成本效益的结合，使其成为广泛应用的吸引人选择。随着我们继续发展基础设施，理解和利用像沥青碎石这样的施工方法，对于未来建设安全高效的道路系统至关重要。