air entrained concrete

简明释义

加气混凝土

英英释义

例句

1.Using air entrained concrete in foundations can help mitigate water damage in areas prone to flooding.

在基础中使用气泡混凝土可以帮助减轻易受洪水影响地区的水损害。

2.Builders often choose air entrained concrete for driveways to prevent cracking caused by freeze-thaw cycles.

建筑商通常选择气泡混凝土用于车道，以防止因冻融循环而导致的开裂。

3.When constructing bridges, engineers recommend using air entrained concrete to enhance resistance to de-icing salts.

在建造桥梁时，工程师建议使用气泡混凝土以增强对除冰盐的抵抗力。

4.The use of air entrained concrete can significantly improve the durability of structures in cold climates.

使用气泡混凝土可以显著提高寒冷气候下结构的耐久性。

5.In high-rise buildings, air entrained concrete can help reduce the overall weight without sacrificing strength.

在高层建筑中，气泡混凝土可以帮助减少整体重量而不牺牲强度。

作文

Concrete is one of the most widely used construction materials in the world, valued for its strength and durability. However, traditional concrete can be susceptible to damage from freeze-thaw cycles, particularly in regions with harsh winter climates. To mitigate this issue, engineers and architects often turn to a specialized type of concrete known as air entrained concrete. This innovative material incorporates tiny air bubbles into the concrete mixture, which significantly enhances its performance in adverse weather conditions.The process of creating air entrained concrete involves adding specific chemical admixtures during the mixing phase. These admixtures act as surfactants, allowing air to be trapped within the concrete mix. The result is a network of microscopic air voids that improve the concrete's resistance to freezing and thawing. When water within the concrete freezes, it expands. In conventional concrete, this expansion can lead to cracking and spalling. However, in air entrained concrete, the air voids provide space for the expanding water, thereby reducing the internal pressure and minimizing damage.In addition to freeze-thaw resistance, air entrained concrete offers other benefits as well. It can enhance the workability of the concrete mix, making it easier to place and finish. This is particularly advantageous in complex projects where precision is crucial. Furthermore, the presence of air voids can improve the overall durability of the concrete, making it less permeable to water and other harmful substances.The applications of air entrained concrete are vast. It is commonly used in pavements, bridges, and structures that are exposed to severe weather conditions. For instance, highways in northern climates often utilize air entrained concrete to prevent damage caused by snow and ice. Similarly, foundations and walls in cold regions benefit from the added protection against freeze-thaw cycles.While the advantages of air entrained concrete are clear, it is essential to understand that proper mixing and placement techniques are critical to achieving the desired results. Engineers must carefully calculate the appropriate amount of air to be entrained in the mix, as too much or too little can compromise the concrete's strength and performance. Quality control measures during production and placement are also vital to ensure consistency and reliability.In conclusion, air entrained concrete represents a significant advancement in concrete technology. Its ability to withstand freeze-thaw cycles and enhance workability makes it an ideal choice for various construction applications, especially in regions with challenging weather conditions. As construction practices continue to evolve, the importance of materials like air entrained concrete will only grow, paving the way for safer and more durable structures in the future.

混凝土是世界上使用最广泛的建筑材料之一，以其强度和耐用性而受到重视。然而，传统混凝土在严酷的冬季气候地区容易受到冻融循环的损害。为了减轻这一问题，工程师和建筑师常常转向一种特殊类型的混凝土，称为引气混凝土。这种创新材料在混凝土混合物中加入微小的气泡，从而显著提高其在恶劣天气条件下的性能。制造引气混凝土的过程涉及在混合阶段添加特定的化学外加剂。这些外加剂作为表面活性剂，使空气能够被困在混凝土混合物中。最终结果是形成微观气孔网络，提高了混凝土对冻融的抵抗力。当混凝土中的水结冰时，它会膨胀。在常规混凝土中，这种膨胀可能导致开裂和剥落。然而，在引气混凝土中，气孔提供了膨胀水分的空间，从而减少内部压力，最小化损害。除了抵抗冻融之外，引气混凝土还提供其他好处。它可以增强混凝土混合物的可加工性，使其更易于放置和完成。这在复杂项目中尤为有利，因为精确性至关重要。此外，气孔的存在可以提高混凝土的整体耐久性，使其对水和其他有害物质的渗透性降低。引气混凝土的应用范围广泛。它通常用于人行道、桥梁和暴露在严酷天气条件下的结构。例如，北方气候的高速公路通常利用引气混凝土来防止因雪和冰造成的损坏。同样，寒冷地区的基础和墙壁也受益于抵御冻融循环的额外保护。虽然引气混凝土的优点显而易见，但必须理解，适当的混合和放置技术对于实现预期结果至关重要。工程师必须仔细计算混合物中应引入的适当气体量，因为过多或过少都会影响混凝土的强度和性能。生产和放置过程中的质量控制措施也至关重要，以确保一致性和可靠性。总之，引气混凝土代表了混凝土技术的重要进步。其抵抗冻融循环和增强可加工性的能力使其成为各种建筑应用的理想选择，尤其是在气候条件严苛的地区。随着建筑实践的不断发展，像引气混凝土这样的材料的重要性只会增加，为未来更安全、更耐用的结构铺平道路。