asphalt content

简明释义

沥青分

英英释义

例句

1.The engineer measured the asphalt content to ensure the mixture met the specifications.

工程师测量了沥青含量以确保混合物符合规格。

2.During the quality control process, we analyze the asphalt content in the samples.

在质量控制过程中，我们分析样本中的沥青含量。

3.To achieve optimal performance, the asphalt content must be balanced with aggregate.

为了达到最佳性能，沥青含量必须与骨料平衡。

4.A higher asphalt content can improve the durability of the pavement.

更高的沥青含量可以提高路面的耐久性。

5.The asphalt content affects the flexibility of the road surface.

道路表面的弹性受到沥青含量的影响。

作文

Asphalt is a crucial material used in the construction and maintenance of roads, pavements, and various other surfaces. One of the key factors determining the quality and durability of asphalt mixtures is the asphalt content. The term asphalt content refers to the percentage of asphalt binder present in a mixture relative to the total weight of the mixture. This content plays a significant role in ensuring that the pavement can withstand traffic loads, weather conditions, and other environmental factors.In the field of civil engineering, understanding the appropriate asphalt content is vital for achieving optimal performance of asphalt mixtures. Too little asphalt can lead to a brittle surface that cracks easily under stress, while too much asphalt can result in a soft, unstable surface that deforms under heavy loads. Therefore, engineers must carefully calculate the ideal asphalt content to create a balanced mixture that offers both strength and flexibility.The determination of asphalt content is typically conducted through laboratory tests. These tests involve taking samples of the asphalt mixture and analyzing them to ascertain the amount of asphalt binder present. Common methods include the ignition method and the solvent extraction method. Each of these methods has its advantages and disadvantages, but they all aim to provide accurate measurements of asphalt content to ensure the quality of the final product.Moreover, the asphalt content can vary based on the specific application and environmental conditions. For instance, in areas with extreme temperatures, a higher asphalt content may be necessary to prevent cracking in cold weather or softening in heat. Additionally, the type of aggregate used in the mixture can also influence the required asphalt content. Different aggregates have varying absorption rates, which affects how much asphalt binder is needed to coat them adequately.Asphalt recycling has become increasingly popular in recent years, further complicating the management of asphalt content. Reclaimed asphalt pavement (RAP) is often incorporated into new mixtures, and this recycled material can alter the overall asphalt content. Engineers must take into account the existing asphalt binder in RAP when designing new mixtures to ensure that the final product meets performance standards.In conclusion, the asphalt content is an essential aspect of asphalt mixture design that significantly impacts the performance and longevity of paved surfaces. By understanding and accurately determining the asphalt content, engineers can create durable roads that stand the test of time and provide safe travel for vehicles. As technology advances and new materials are developed, the importance of managing asphalt content will only continue to grow in the field of civil engineering.

沥青是用于道路、铺面和各种其他表面的建设和维护的重要材料。决定沥青混合物质量和耐久性的关键因素之一是沥青含量。术语沥青含量指的是混合物中沥青粘结剂的百分比，相对于混合物的总重量。这个含量在确保路面能够承受交通负荷、天气条件和其他环境因素方面发挥着重要作用。在土木工程领域，了解适当的沥青含量对于实现沥青混合物的最佳性能至关重要。过少的沥青会导致脆弱的表面，在压力下容易开裂，而过多的沥青则可能导致表面软化、失稳，在重负荷下变形。因此，工程师必须仔细计算理想的沥青含量，以创建出既有强度又有柔韧性的平衡混合物。沥青含量的确定通常通过实验室测试进行。这些测试涉及取样沥青混合物并分析其沥青粘结剂的含量。常见的方法包括点火法和溶剂提取法。这些方法各有优缺点，但它们的目标都是提供准确的沥青含量测量，以确保最终产品的质量。此外，沥青含量可以根据具体应用和环境条件而变化。例如，在极端温度的地区，可能需要更高的沥青含量来防止在寒冷天气中开裂或在炎热中软化。此外，混合物中使用的骨料类型也会影响所需的沥青含量。不同的骨料具有不同的吸收率，这会影响涂覆它们所需的沥青粘结剂的量。近年来，沥青回收变得越来越流行，进一步复杂化了沥青含量的管理。再生沥青路面（RAP）通常被纳入新混合物中，而这种再生材料可能会改变整体的沥青含量。工程师必须考虑RAP中现有的沥青粘结剂，以确保新混合物满足性能标准。总之，沥青含量是沥青混合物设计的一个重要方面，对铺面表面的性能和耐久性产生重大影响。通过理解和准确确定沥青含量，工程师可以创造出经得起时间考验、为车辆提供安全通行的耐用道路。随着技术的进步和新材料的开发，管理沥青含量的重要性在土木工程领域只会继续增长。