macadam aggregate

简明释义

锁结式集料

英英释义

例句

1.The contractor suggested macadam aggregate for the new parking lot to reduce maintenance costs.

承包商建议在新的停车场使用碎石集料以降低维护成本。

2.Using macadam aggregate in the base layer helps to stabilize the surface of the road.

在基础层中使用碎石集料有助于稳定路面的表面。

3.The road was paved using macadam aggregate, which provides excellent drainage.

这条路是用碎石集料铺成的，提供了良好的排水。

4.For the construction of the new driveway, we decided to use macadam aggregate due to its durability.

为了建造新的车道，我们决定使用碎石集料，因为它的耐用性。

5.The local government recommended macadam aggregate for the park paths because it is eco-friendly.

当地政府推荐在公园小径上使用碎石集料，因为它环保。

作文

The construction of roads and highways has evolved significantly over the years, with various materials being utilized to enhance durability and performance. One such material that has gained prominence in road construction is macadam aggregate, a type of crushed stone that serves as a foundational layer for pavements. The term 'macadam' is derived from the name of John Loudon McAdam, an engineer who pioneered this method in the early 19th century. macadam aggregate consists of small stones that are compacted together to form a stable surface, making it an ideal choice for road construction.One of the key advantages of using macadam aggregate is its ability to provide excellent drainage. The spaces between the stones allow water to flow through, reducing the risk of flooding and erosion on the road surface. This drainage capability is essential, especially in areas prone to heavy rainfall. Additionally, the compacted nature of macadam aggregate creates a solid base that can withstand the weight of vehicles, ensuring longevity and safety on the roads.Moreover, macadam aggregate is environmentally friendly. The use of recycled materials in the production of macadam aggregate reduces the need for new resources, thereby minimizing the environmental impact of road construction. By incorporating reclaimed asphalt and other recycled materials, contractors can create a sustainable solution that meets modern construction demands while preserving natural resources.In terms of maintenance, roads constructed with macadam aggregate require less frequent repairs compared to those made with traditional materials. The durability of the compacted stones helps to resist cracking and potholes, which are common issues in road infrastructure. When maintenance is required, it is often easier and more cost-effective to repair macadam aggregate surfaces than to replace entire sections of pavement.Furthermore, macadam aggregate can be aesthetically pleasing. With various sizes and colors of stones available, contractors can design roads that blend seamlessly with the surrounding environment. This adaptability makes macadam aggregate a versatile option for both urban and rural settings, allowing for creative designs that enhance the visual appeal of roadways.Despite its many benefits, there are challenges associated with the use of macadam aggregate. For instance, the initial installation requires skilled labor to ensure proper compaction and alignment of the stones. If not executed correctly, the road can develop uneven surfaces that may pose safety hazards for drivers. Additionally, the effectiveness of macadam aggregate can be influenced by local climate conditions, as extreme temperatures may affect the stability of the stones.In conclusion, macadam aggregate represents a significant advancement in road construction technology. Its unique properties, including superior drainage, environmental friendliness, low maintenance requirements, and aesthetic versatility, make it an attractive choice for modern infrastructure projects. As we continue to seek sustainable and efficient solutions for road construction, the use of macadam aggregate will likely play a crucial role in shaping the future of transportation. By understanding and utilizing this material effectively, we can build safer, more durable roads that meet the needs of our growing population.

道路和高速公路的建设在多年来发生了显著变化，使用各种材料来增强耐用性和性能。其中一种在道路建设中逐渐受到重视的材料是碎石集料，它是一种用于铺设路面的碎石类型。‘碎石’这一术语源自约翰·劳登·麦克亚当的名字，他在19世纪初开创了这一方法。碎石集料由小石头组成，这些石头被压实在一起形成一个稳定的表面，使其成为道路建设的理想选择。使用碎石集料的一个主要优点是它能够提供优良的排水能力。石头之间的空隙允许水流过，从而减少了路面洪水和侵蚀的风险。这种排水能力在降雨量大的地区尤为重要。此外，碎石集料的压实特性创造了一个坚固的基础，可以承受车辆的重量，确保道路的耐久性和安全性。此外，碎石集料是环保的。在碎石集料的生产过程中使用回收材料减少了对新资源的需求，从而最小化了道路建设对环境的影响。通过结合回收沥青和其他回收材料，承包商可以创建一种可持续的解决方案，满足现代建筑需求，同时保护自然资源。在维护方面，使用碎石集料建造的道路相比于传统材料的道路需要更少的维修。压实石头的耐用性有助于抵抗裂缝和坑洞，这是道路基础设施常见的问题。当需要维护时，修复碎石集料表面通常比更换整个路段的铺面更容易且更具成本效益。此外，碎石集料在美观上也具有吸引力。由于有各种尺寸和颜色的石头可供选择，承包商可以设计与周围环境无缝融合的道路。这种适应性使得碎石集料在城市和乡村环境中都是一种多功能的选择，允许创造性的设计来增强道路的视觉吸引力。尽管有许多优点，使用碎石集料也存在挑战。例如，初始安装需要熟练的工人以确保石头的正确压实和对齐。如果执行不当，路面可能会出现不平整的表面，从而对驾驶者造成安全隐患。此外，碎石集料的有效性可能会受到当地气候条件的影响，因为极端温度可能会影响石头的稳定性。总之，碎石集料代表了道路建设技术的重要进步。其独特的特性，包括优越的排水能力、环保性、低维护需求和美学多样性，使其成为现代基础设施项目的一个有吸引力的选择。随着我们继续寻求可持续和高效的道路建设解决方案，使用碎石集料可能在塑造未来交通中发挥关键作用。通过有效理解和利用这种材料，我们可以建设更安全、更耐用的道路，以满足不断增长的人口需求。