coarse graded asphaltic concrete

简明释义

粗级配沥青混凝土

英英释义

例句

1.The use of coarse graded asphaltic concrete can help reduce noise pollution on busy streets.

使用粗级沥青混凝土可以帮助减少繁忙街道上的噪音污染。

2.The contractor recommended coarse graded asphaltic concrete for the road base to enhance stability.

承包商建议为路基使用粗级沥青混凝土以增强稳定性。

3.For the new parking lot, we decided to use coarse graded asphaltic concrete for its durability.

为了新的停车场，我们决定使用粗级沥青混凝土，因为它的耐用性。

4.In urban areas, coarse graded asphaltic concrete is often preferred for high-traffic roads.

在城市地区，通常优先选择粗级沥青混凝土用于高交通量的道路。

5.The highway was paved with coarse graded asphaltic concrete, which provides better drainage during heavy rain.

这条高速公路铺设了粗级沥青混凝土，在大雨时提供更好的排水。

作文

Asphalt is one of the most widely used materials in road construction, and its various types serve different purposes. Among these types, coarse graded asphaltic concrete stands out for its unique properties and applications. This type of asphaltic concrete is characterized by larger aggregate sizes, which provide several advantages that make it suitable for specific engineering needs. In this essay, I will explore the features, benefits, and applications of coarse graded asphaltic concrete in the construction industry.The primary feature of coarse graded asphaltic concrete is its aggregate composition. The larger aggregates in this mix typically range from 19 mm to 25 mm or more, depending on the design specifications. This coarse grading allows for better drainage characteristics, which is crucial in preventing water accumulation on pavements. Proper drainage helps reduce the risk of hydroplaning and enhances the overall safety of the roadway. Moreover, the larger aggregate particles create a rough surface texture that improves skid resistance, making it an ideal choice for high-traffic areas.Another significant advantage of coarse graded asphaltic concrete is its durability. The increased void space between larger aggregates allows for a thicker layer of asphalt binder, which can enhance the longevity of the pavement. This durability is particularly beneficial in regions with extreme weather conditions, where freeze-thaw cycles can lead to cracking and deterioration of traditional asphalt mixes. By utilizing coarse graded asphaltic concrete, engineers can design pavements that withstand these harsh conditions while maintaining their structural integrity over time.In terms of applications, coarse graded asphaltic concrete is frequently used in heavy-duty pavements, such as highways, airfields, and industrial areas. These locations experience significant loads from vehicles and machinery, necessitating a robust and resilient pavement structure. Additionally, the coarse grading of the aggregates helps in reducing the overall weight of the pavement, which can be advantageous in certain construction scenarios where subgrade support is limited.Furthermore, coarse graded asphaltic concrete is often employed in the construction of drainage layers and base courses. Its ability to facilitate water movement makes it an excellent choice for these applications, ensuring that excess water does not compromise the integrity of the road surface. Engineers often specify this type of asphaltic concrete in projects where effective drainage is critical to the performance of the pavement.It is also worth noting that the production process of coarse graded asphaltic concrete requires careful consideration. The mixing of larger aggregates with the asphalt binder must be done precisely to achieve the desired consistency and performance characteristics. Quality control during production is essential to ensure that the final product meets the necessary standards and specifications.In conclusion, coarse graded asphaltic concrete plays a vital role in modern road construction due to its unique properties and advantages. Its larger aggregate size contributes to improved drainage, enhanced durability, and greater skid resistance, making it suitable for high-traffic and heavy-load applications. By understanding the benefits and applications of coarse graded asphaltic concrete, engineers and construction professionals can make informed decisions that lead to safer and more durable roadways. As the demand for efficient and long-lasting pavement solutions continues to grow, the importance of materials like coarse graded asphaltic concrete will undoubtedly remain significant in the field of civil engineering.

沥青是道路建设中使用最广泛的材料之一，其不同类型具有不同的用途。在这些类型中，粗集料沥青混凝土因其独特的特性和应用而脱颖而出。这种类型的沥青混凝土以较大的集料粒径为特征，这为其提供了几个优点，使其适合特定的工程需求。在本文中，我将探讨粗集料沥青混凝土在建筑行业中的特征、优势和应用。粗集料沥青混凝土的主要特征是其集料组成。这种混合物中的较大集料通常范围从19毫米到25毫米或更大，具体取决于设计规范。这种粗级配允许更好的排水特性，这对于防止路面上水积聚至关重要。适当的排水有助于减少水滑行的风险，并提高道路的整体安全性。此外，较大集料颗粒形成的粗糙表面纹理改善了抗滑性能，使其成为高流量区域的理想选择。粗集料沥青混凝土的另一个显著优势是其耐久性。较大集料之间的空隙空间增加使得沥青粘结剂的厚度增加，从而增强了路面的使用寿命。这种耐久性在极端天气条件下尤为重要，因为冰冻-融化周期可能导致传统沥青混合物的开裂和恶化。通过利用粗集料沥青混凝土，工程师可以设计出能够承受这些严酷条件并保持结构完整性的路面。在应用方面，粗集料沥青混凝土常用于重载路面，如高速公路、机场和工业区。这些地点承受着来自车辆和机械的重大负荷，因此需要坚固且有韧性的路面结构。此外，集料的粗级配有助于减少路面的总体重量，这在某些基础支持有限的施工场景中可能是有利的。此外，粗集料沥青混凝土通常用于排水层和基础层的建设。其促进水分流动的能力使其成为这些应用的绝佳选择，确保多余的水不会损害路面表面的完整性。工程师通常在项目中指定这种类型的沥青混凝土，在这些项目中，有效的排水对路面的性能至关重要。同样值得注意的是，粗集料沥青混凝土的生产过程需要仔细考虑。较大集料与沥青粘结剂的混合必须精确进行，以达到所需的一致性和性能特征。生产过程中的质量控制对于确保最终产品符合必要的标准和规范至关重要。总之，粗集料沥青混凝土由于其独特的特性和优势，在现代道路建设中发挥着重要作用。其较大的集料粒径有助于改善排水、增强耐久性和提高抗滑性，使其适合高流量和重载应用。通过理解粗集料沥青混凝土的优点和应用，工程师和建筑专业人员可以做出明智的决策，从而导致更安全、更耐用的道路。随着对高效和持久的路面解决方案的需求不断增长，像粗集料沥青混凝土这样的材料在土木工程领域的重要性无疑将继续显著。