aggregate gradation

简明释义

骨料级配

英英释义

例句

1.To achieve maximum compaction, we need to optimize the aggregate gradation 骨料级配 in our design.

为了达到最大压实，我们需要优化设计中的aggregate gradation 骨料级配。

2.During the quality control process, we measured the aggregate gradation 骨料级配 of the materials used.

在质量控制过程中，我们测量了所用材料的aggregate gradation 骨料级配。

3.A well-designed aggregate gradation 骨料级配 can significantly improve the durability of asphalt pavements.

合理设计的aggregate gradation 骨料级配可以显著提高沥青路面的耐久性。

4.The engineer analyzed the aggregate gradation 骨料级配 to ensure optimal strength in the concrete mix.

工程师分析了aggregate gradation 骨料级配，以确保混凝土混合物的最佳强度。

5.The aggregate gradation 骨料级配 affects the workability of the concrete mixture.

aggregate gradation 骨料级配影响混凝土混合物的可操作性。

作文

In the field of civil engineering and construction, the term aggregate gradation refers to the distribution of different particle sizes within a given aggregate material. This concept is crucial for determining the strength, workability, and durability of concrete and asphalt mixtures. The gradation of aggregates can significantly influence the performance of the final product, making it essential for engineers and construction professionals to understand and apply this principle effectively.The aggregate gradation is typically categorized into three types: well-graded, poorly graded, and gap-graded. A well-graded aggregate contains a full range of particle sizes, which allows for minimal voids between the particles. This results in a dense mixture that requires less cement or binder, thus reducing costs and enhancing the overall quality of the concrete. On the other hand, a poorly graded aggregate has a limited range of particle sizes, leading to increased voids and a weaker final product. Gap-graded aggregates contain certain sizes that are missing from the gradation, which can also affect the mixture's properties adversely.Understanding the implications of aggregate gradation is vital during the mix design process. Engineers often perform sieve analysis to determine the particle size distribution of aggregates. This analysis helps in selecting the appropriate materials to achieve the desired characteristics of the concrete or asphalt. For instance, a well-graded aggregate will improve the workability of the mix, making it easier to place and finish. It also enhances the durability of the concrete by reducing the permeability, which protects against environmental factors such as water infiltration and freeze-thaw cycles.Moreover, the aggregate gradation impacts the mechanical properties of the concrete. A well-graded mix tends to have higher compressive strength and lower shrinkage compared to poorly graded mixes. This is particularly important in structural applications where load-bearing capacity is critical. Additionally, the aesthetic appearance of the concrete can be influenced by the gradation of aggregates used, especially in decorative concrete finishes.In recent years, there has been a growing emphasis on sustainable construction practices, which has led to the exploration of alternative aggregates and their gradations. Recycled materials, such as crushed concrete and reclaimed asphalt pavement, are being used more frequently. Understanding the aggregate gradation of these materials is essential to ensure that they meet the necessary performance standards while also contributing to environmental conservation efforts.In conclusion, the concept of aggregate gradation is fundamental to the success of any construction project involving concrete or asphalt. It directly affects the material's performance, cost, and sustainability. As the industry continues to evolve, ongoing research and development in this area will be crucial for advancing construction techniques and materials. Therefore, it is imperative for professionals in the field to have a comprehensive understanding of aggregate gradation and its implications on the overall quality and durability of their projects.

在土木工程和建筑领域，术语集料级配指的是给定集料材料中不同颗粒大小的分布。这个概念对于确定混凝土和沥青混合物的强度、可加工性和耐久性至关重要。集料的级配可以显著影响最终产品的性能，因此工程师和建筑专业人员必须有效理解和应用这一原理。集料级配通常分为三种类型：良好级配、差级配和缺口级配。良好级配的集料包含全范围的颗粒大小，这允许颗粒之间的空隙最小化。这导致混合物密实，所需的水泥或粘合剂较少，从而降低成本并提高混凝土的整体质量。另一方面，差级配的集料颗粒大小范围有限，导致空隙增加，最终产品较弱。缺口级配的集料则包含某些缺失的颗粒大小，这也会对混合物的性能产生不利影响。在配合比设计过程中，理解集料级配的影响至关重要。工程师通常进行筛分分析，以确定集料的颗粒大小分布。这一分析有助于选择适当的材料，以实现混凝土或沥青所需的特性。例如，良好级配的集料将改善混合物的可加工性，使其更易于浇筑和整理。它还通过减少渗透性增强混凝土的耐久性，从而保护混凝土免受水渗透和冰冻-融化循环等环境因素的影响。此外，集料级配还影响混凝土的机械性能。与差级配混合物相比，良好级配的混合物往往具有更高的抗压强度和更低的收缩性。这在结构应用中尤为重要，因为承载能力至关重要。此外，集料的级配也会影响混凝土的美观，特别是在装饰性混凝土表面处理中。近年来，随着对可持续建筑实践的日益重视，探索替代集料及其级配的研究逐渐增多。回收材料，如破碎混凝土和再生沥青路面，正被越来越多地使用。理解这些材料的集料级配对于确保它们符合必要的性能标准，同时也为环境保护做出贡献至关重要。总之，集料级配的概念是任何涉及混凝土或沥青的建筑项目成功的基础。它直接影响材料的性能、成本和可持续性。随着行业的不断发展，在这一领域的持续研究和开发对于推进建筑技术和材料至关重要。因此，行业专业人士必须全面理解集料级配及其对项目整体质量和耐久性的影响。