surface dry aggregate

简明释义

面干集料

英英释义

例句

1.Using surface dry aggregate can help improve the durability of the pavement.

使用表面干燥骨料可以帮助提高路面的耐久性。

2.The construction team measured the weight of the surface dry aggregate to ensure accurate concrete mixing.

施工团队测量了表面干燥骨料的重量，以确保混凝土配比的准确性。

3.Before mixing, we must ensure that the surface dry aggregate is free from moisture.

在混合之前，我们必须确保表面干燥骨料没有水分。

4.The supplier provided a sample of surface dry aggregate for quality testing.

供应商提供了一份表面干燥骨料的样品进行质量测试。

5.The engineer specified the use of surface dry aggregate to achieve optimal performance in the concrete.

工程师指定使用表面干燥骨料以实现混凝土的最佳性能。

作文

In the field of construction and civil engineering, the term surface dry aggregate refers to a specific condition of aggregate materials used in concrete production. Aggregate is a crucial component of concrete, providing strength and stability to structures. Understanding the properties of aggregates, particularly when they are in the surface dry aggregate state, is essential for engineers to ensure the quality and durability of concrete mixes. When we talk about surface dry aggregate, we are referring to aggregates that have been dried on the surface but may still contain moisture within their internal structure. This condition arises after the aggregates have been exposed to air and have lost some of their surface moisture, yet they have not reached a completely dry state. The significance of this term lies in its impact on the water-to-cement ratio in concrete mixtures. For example, if an engineer specifies a concrete mix design that requires a certain amount of water, using surface dry aggregate can lead to variations in the final water content. If the aggregates retain internal moisture, the actual amount of water added to the mix may be less than intended, which could affect the hydration process of the cement. This highlights the importance of accurately measuring the moisture content of aggregates before mixing them with cement and water. Moreover, understanding the surface dry aggregate condition is vital for achieving the desired workability and strength of concrete. If the aggregates are too wet or too dry, it can lead to inconsistencies in the concrete's performance. For instance, excessively wet aggregates can result in a concrete mix that is too fluid, leading to segregation and reduced strength. Conversely, overly dry aggregates may absorb too much water from the mix, leading to a dry mix that lacks the necessary workability for proper placement and finishing. In practical applications, testing for surface dry aggregate conditions is often performed using standardized methods. Engineers typically conduct moisture content tests to determine the exact state of the aggregates. This information allows them to adjust the amount of water added to the concrete mix accordingly, ensuring that the final product meets the required specifications. In conclusion, the term surface dry aggregate plays a critical role in the field of concrete technology. It emphasizes the need for precise measurement and understanding of aggregate conditions to produce high-quality concrete. By recognizing the implications of using aggregates in this state, engineers can better control the properties of concrete, leading to more durable and reliable structures. As the construction industry continues to evolve, the importance of mastering concepts like surface dry aggregate will remain paramount for professionals in the field.

在建筑和土木工程领域，术语表面干燥骨料指的是用于混凝土生产的骨料材料的一种特定状态。骨料是混凝土的关键组成部分，为结构提供强度和稳定性。理解骨料的特性，特别是在表面干燥骨料状态下，对于工程师确保混凝土配合比的质量和耐久性至关重要。当我们谈论表面干燥骨料时，我们指的是那些表面已经干燥但内部结构可能仍然含有水分的骨料。这种状态出现在骨料暴露于空气中并失去了一些表面水分后，但尚未达到完全干燥的状态。这个术语的重要性在于它对混凝土配合比中的水灰比的影响。例如，如果工程师指定了一种需要一定量水的混凝土配合比，使用表面干燥骨料可能会导致最终水分含量的变化。如果骨料保留了内部水分，实际添加到混合物中的水量可能会少于预期，这可能会影响水泥的水化过程。这凸显了在将骨料与水泥和水混合之前，准确测量骨料水分含量的重要性。此外，理解表面干燥骨料的状态对于实现混凝土所需的可加工性和强度至关重要。如果骨料过湿或过干，可能会导致混凝土性能的不一致。例如，过湿的骨料可能导致混凝土混合物过于流动，从而导致分离和强度降低。相反，过于干燥的骨料可能会从混合物中吸收过多的水分，导致缺乏必要可加工性的干混合物，影响适当的浇筑和修整。在实际应用中，通常通过标准化方法测试表面干燥骨料条件。工程师通常进行水分含量测试，以确定骨料的确切状态。这些信息使他们能够相应地调整添加到混凝土混合物中的水量，确保最终产品符合所需的规格。总之，术语表面干燥骨料在混凝土技术领域发挥着关键作用。它强调了精确测量和理解骨料条件的必要性，以生产高质量的混凝土。通过认识到在这种状态下使用骨料的影响，工程师可以更好地控制混凝土的性质，从而导致更耐用和可靠的结构。随着建筑行业的不断发展，掌握像表面干燥骨料这样的概念对该领域的专业人士来说将始终至关重要。