concrete with entrained air

简明释义

加气混凝土

英英释义

例句

1.In regions with harsh winters, builders often opt for concrete with entrained air to ensure durability.

在冬季严酷的地区，建筑商通常选择使用含气混凝土以确保耐久性。

2.The mix design included concrete with entrained air to enhance workability and reduce water absorption.

混合设计包括含气混凝土以增强可操作性并减少水分吸收。

3.The contractor recommended using concrete with entrained air for the outdoor patio to improve its resistance to freeze-thaw cycles.

承包商建议在户外露台使用含气混凝土以提高其抗冻融循环的能力。

4.Using concrete with entrained air can significantly reduce the risk of cracking in pavements.

使用含气混凝土可以显著降低人行道开裂的风险。

5.For the foundation, we decided against concrete with entrained air as it was not necessary for our climate.

对于基础，我们决定不使用含气混凝土，因为我们的气候没有这个必要。

作文

Concrete is one of the most widely used construction materials in the world. Its versatility, durability, and strength make it an ideal choice for various applications, from buildings to roads. However, not all concrete is created equal. One important variation is concrete with entrained air, which incorporates tiny air bubbles into the mix. This addition significantly enhances the performance of concrete in specific environments, especially those exposed to freeze-thaw cycles. In this essay, we will explore the benefits and applications of concrete with entrained air, as well as its importance in modern construction practices.The primary advantage of concrete with entrained air is its improved resistance to freezing and thawing. When water freezes, it expands, which can create significant pressure within the concrete. If the concrete does not have sufficient air voids to accommodate this expansion, it can crack and deteriorate over time. By incorporating air-entraining agents into the concrete mix, engineers can create a network of tiny air pockets that alleviate this pressure, thereby enhancing the longevity of the structure.Moreover, concrete with entrained air exhibits better workability. The presence of air bubbles makes the concrete easier to mix, transport, and place. This characteristic is particularly beneficial in cold weather conditions, where conventional concrete can become stiff and difficult to work with. The improved workability allows for more efficient construction processes and reduces the risk of defects during pouring and finishing.Another critical aspect of concrete with entrained air is its ability to reduce the permeability of the concrete. The air bubbles help to create a more uniform structure, reducing the pathways for water and harmful chemicals to penetrate. This property is vital for structures exposed to de-icing salts or other corrosive substances, as it helps prevent damage caused by chemical reactions. Consequently, using concrete with entrained air can lead to lower maintenance costs and increased safety for infrastructure.In terms of applications, concrete with entrained air is commonly used in areas prone to severe weather conditions, such as northern climates where freeze-thaw cycles are frequent. It is often found in pavements, bridges, and foundations. Additionally, it is suitable for precast concrete products, as the controlled environment of a factory allows for precise mixing and curing processes. Engineers and architects increasingly recognize the value of concrete with entrained air in meeting the demands of modern construction while ensuring long-lasting performance.In conclusion, concrete with entrained air plays a crucial role in enhancing the durability and performance of concrete structures. Its ability to resist freeze-thaw damage, improve workability, and reduce permeability makes it an essential material in contemporary construction. As we continue to face challenges posed by climate change and extreme weather, the use of concrete with entrained air will likely become even more prevalent, ensuring that our infrastructure remains resilient and safe for future generations.

混凝土是世界上最广泛使用的建筑材料之一。其多功能性、耐久性和强度使其成为各种应用的理想选择，从建筑物到道路。然而，并非所有的混凝土都是一样的。其中一个重要的变种是含有引气的混凝土，它在混合中加入微小的气泡。这种添加显著增强了混凝土在特定环境中的性能，特别是在经历冻融循环的情况下。在这篇文章中，我们将探讨含有引气的混凝土的好处和应用，以及它在现代建筑实践中的重要性。含有引气的混凝土的主要优点是其对冻融的抵抗力增强。当水结冰时，它会膨胀，这可能在混凝土内部产生显著的压力。如果混凝土没有足够的空气空隙来容纳这种膨胀，它可能会随时间开裂和恶化。通过在混凝土混合物中加入引气剂，工程师可以创建一系列微小的气泡网络，以缓解这种压力，从而增强结构的耐久性。此外，含有引气的混凝土表现出更好的可加工性。空气泡的存在使混凝土更易于混合、运输和浇筑。这一特性在寒冷天气条件下尤其有利，因为常规混凝土可能变得僵硬且难以操作。改善的可加工性允许更高效的施工过程，并减少浇筑和抛光过程中缺陷的风险。含有引气的混凝土的另一个关键方面是其降低混凝土渗透性的能力。空气泡有助于创建更均匀的结构，减少水和有害化学物质渗透的通道。这一特性对于暴露于除冰盐或其他腐蚀性物质的结构至关重要，因为它有助于防止由化学反应引起的损坏。因此，使用含有引气的混凝土可以降低维护成本，并提高基础设施的安全性。在应用方面，含有引气的混凝土通常用于天气条件严酷的地区，例如北方气候，在这些地方冻融循环频繁。它通常出现在人行道、桥梁和基础中。此外，它适用于预制混凝土产品，因为工厂的受控环境允许精确的混合和固化过程。工程师和建筑师越来越认识到含有引气的混凝土在满足现代建筑需求方面的价值，同时确保长期性能。总之，含有引气的混凝土在增强混凝土结构的耐久性和性能方面发挥着至关重要的作用。其抵御冻融损伤、改善可加工性和降低渗透性的能力使其成为当代建筑中不可或缺的材料。随着我们继续面临气候变化和极端天气带来的挑战，含有引气的混凝土的使用可能会变得更加普遍，确保我们的基础设施在未来几代人中保持韧性和安全。