retempered concrete

简明释义

重拌混凝土

英英释义

例句

1.The contractor emphasized the importance of using retempered concrete to avoid cracks in the foundation.

承包商强调使用再调温混凝土的重要性，以避免基础出现裂缝。

2.Using retempered concrete can help maintain the desired consistency during large pours.

使用再调温混凝土可以帮助在大规模浇筑时保持所需的一致性。

3.After the initial mix was too dry, the workers added water to create retempered concrete for easier handling.

在初始混合物过干后，工人们添加了水以制作再调温混凝土，以便于处理。

4.The construction team decided to use retempered concrete to ensure better workability in the hot weather.

施工队决定使用再调温混凝土以确保在炎热天气下更好的可操作性。

5.For the sidewalk project, the city specified the use of retempered concrete to enhance durability.

在人行道项目中，市政府规定使用再调温混凝土以增强耐久性。

作文

Concrete is one of the most widely used construction materials in the world, valued for its durability and strength. However, achieving the perfect consistency and workability of concrete can sometimes be a challenge. This is where the concept of retempered concrete comes into play. retempered concrete refers to the process of adding water to concrete that has already begun to set, in order to restore its workability. While this practice can be beneficial in certain situations, it also requires careful consideration to ensure the integrity of the final product.The need for retempered concrete often arises when concrete is mixed but not immediately used, leading to a situation where the mixture starts to harden before it can be poured or shaped. In construction sites, workers may face delays due to various factors such as equipment failure, inclement weather, or logistical issues. When faced with such delays, adding water to the mix can make the concrete easier to work with, allowing for smoother application and better finishing.However, the use of retempered concrete is not without its drawbacks. Adding too much water can dilute the concrete's strength, leading to a weaker structure. The American Concrete Institute (ACI) provides guidelines on the acceptable limits for retempering, emphasizing that the amount of water added should not exceed the original water-cement ratio specified in the mix design. This is crucial because exceeding this ratio can compromise the long-term durability of the concrete, making it more susceptible to cracking, shrinkage, and other forms of deterioration over time.Moreover, the timing of the addition of water is critical. If the concrete has already begun to set significantly, retempering may not be effective, and the material may not regain its original workability. Therefore, it is essential for construction professionals to be trained in recognizing the right moment to apply this process. Additionally, they should be aware of the specific characteristics of the concrete mix being used, as different mixtures may react differently to retempering.In some cases, the use of retempered concrete can lead to improved performance in terms of finish and appearance. For decorative concrete applications, such as stamped or colored finishes, ensuring the right workability is vital for achieving the desired aesthetic results. Thus, when used judiciously, retempering can enhance the quality of the final product.In conclusion, while retempered concrete can be a useful technique in the construction industry, it must be employed with caution. Understanding the implications of adding water to concrete that has already begun to set is essential for maintaining the structural integrity and durability of the material. By adhering to best practices and guidelines provided by industry standards, construction professionals can effectively utilize retempered concrete to their advantage, ensuring that their projects are completed successfully and to the highest quality standards.

混凝土是全球使用最广泛的建筑材料之一，以其耐久性和强度而受到重视。然而，达到混凝土的完美一致性和可操作性有时会面临挑战。这就是“再调制混凝土”这个概念发挥作用的地方。“再调制混凝土”指的是向已经开始凝固的混凝土中添加水，以恢复其可操作性的过程。虽然在某些情况下，这种做法是有益的，但也需要仔细考虑，以确保最终产品的完整性。“再调制混凝土”的需求通常出现在混凝土混合后未立即使用的情况下，导致混合物在可以浇筑或成型之前开始硬化。在施工现场，由于设备故障、恶劣天气或物流问题等各种因素，工人可能会面临延误。当遇到这样的延误时，向混合物中添加水可以使混凝土更易于操作，从而实现更顺利的应用和更好的表面处理。然而，“再调制混凝土”的使用并非没有缺点。添加过多的水会稀释混凝土的强度，从而导致结构变弱。美国混凝土协会（ACI）提供了有关再调制的可接受限制的指导，强调添加的水量不得超过混合设计中规定的原始水-水泥比。这一点至关重要，因为超过此比例可能会危及混凝土的长期耐久性，使其更容易出现开裂、收缩和其他形式的退化。此外，添加水的时机至关重要。如果混凝土已经开始显著凝固，再调制可能无效，材料可能无法恢复到原来的可操作性。因此，建筑专业人士必须接受培训，以识别何时应用此过程。此外，他们还应了解所使用混凝土混合物的特定特性，因为不同的混合物对再调制的反应可能不同。在某些情况下，使用“再调制混凝土”可以在外观和表面效果方面提高性能。对于装饰性混凝土应用，例如压印或着色饰面，确保适当的可操作性对于实现所需的美学效果至关重要。因此，在谨慎使用的情况下，再调制可以增强最终产品的质量。总之，尽管“再调制混凝土”在建筑行业中可以是一种有用的技术，但必须谨慎使用。理解向已经开始凝固的混凝土中添加水的影响，对于保持材料的结构完整性和耐久性至关重要。通过遵循最佳实践和行业标准提供的指导，建筑专业人士可以有效利用“再调制混凝土”，确保他们的项目成功完成并达到最高质量标准。