fresh concrete

简明释义

新拌混凝土

英英释义

例句

1.The contractor advised us not to walk on the fresh concrete for at least 24 hours.

承包商建议我们至少24小时内不要走在新鲜混凝土上。

2.We need to cover the fresh concrete with plastic to protect it from rain.

我们需要用塑料覆盖新鲜混凝土以保护它免受雨水侵袭。

3.The workers poured the fresh concrete into the foundation to ensure a solid base for the building.

工人们将新鲜混凝土倒入基础，以确保建筑物的坚固基础。

4.Adding color to the fresh concrete can enhance the aesthetic appeal of the driveway.

在新鲜混凝土中添加颜色可以增强车道的美观性。

5.It is crucial to finish the surface of the fresh concrete before it starts to set.

在新鲜混凝土开始凝固之前，完成其表面是至关重要的。

作文

In the world of construction and architecture, few materials are as essential and versatile as concrete. Among the various stages of concrete usage, the term fresh concrete refers to concrete that has just been mixed and is still in a pliable state, ready for pouring and shaping. This phase is critical because the properties of fresh concrete can significantly influence the final outcome of any construction project. Understanding how to work with fresh concrete is crucial for builders, engineers, and architects alike.When fresh concrete is prepared, it consists of a mixture of cement, water, sand, and aggregates. The proportions of these ingredients determine the strength and durability of the concrete once it sets. During this initial mixing stage, the concrete is malleable, allowing workers to mold it into various shapes and forms. This flexibility is what makes fresh concrete an ideal choice for creating complex structures, from foundations to decorative elements like sculptures and walkways.One of the primary advantages of using fresh concrete is its ability to be poured into molds. This property is particularly beneficial when constructing items such as beams, columns, and slabs. The process begins by preparing the site and setting up formwork, which acts as a temporary structure to hold the fresh concrete in place until it hardens. Once the formwork is in position, the concrete can be poured in, ensuring that it fills every corner and crevice.However, working with fresh concrete requires careful attention to timing and environmental conditions. For instance, if the temperature is too high, the concrete may set too quickly, leading to cracks and reduced strength. Conversely, if it's too cold, the curing process might slow down, affecting the overall integrity of the structure. Therefore, construction teams must monitor weather conditions closely and take appropriate measures, such as using additives or insulating blankets, to protect the fresh concrete during its curing phase.Another important aspect of fresh concrete is its workability. This term refers to how easily the concrete can be mixed, transported, and placed without losing its desired properties. Workability can be affected by the water-cement ratio, the type of aggregates used, and the presence of admixtures. Builders often conduct slump tests to measure the consistency of fresh concrete, which helps them determine whether adjustments are necessary before pouring.Moreover, the use of fresh concrete extends beyond traditional construction. In recent years, innovative applications have emerged, such as 3D printing with concrete. This technology utilizes fresh concrete to create intricate designs that were previously difficult to achieve with conventional methods. As this technology advances, it opens up new possibilities for architects and designers, allowing them to push the boundaries of creativity while maintaining the structural integrity of their projects.In conclusion, fresh concrete plays a vital role in the construction industry. Its properties, workability, and the techniques used to manipulate it can determine the success of a project. Understanding the characteristics and best practices associated with fresh concrete is essential for anyone involved in building or designing structures. As technology continues to evolve, the potential applications for fresh concrete will only expand, making it an exciting material to watch in the future of construction.

在建筑和建筑设计的世界中，混凝土是最基本和多功能的材料之一。在混凝土使用的各个阶段中，术语fresh concrete指的是刚刚混合并且仍处于可塑状态的混凝土，准备浇筑和成型。这个阶段至关重要，因为fresh concrete的特性可以显著影响任何建筑项目的最终结果。理解如何处理fresh concrete对建筑工人、工程师和建筑师来说都是至关重要的。当fresh concrete被准备好时，它由水泥、水、沙子和骨料的混合物组成。这些成分的比例决定了混凝土固化后强度和耐久性。在这个初始混合阶段，混凝土是可塑的，允许工人将其塑造成各种形状和形式。这种灵活性使得fresh concrete成为创建复杂结构的理想选择，从基础到装饰元素，如雕塑和人行道。使用fresh concrete的主要优势之一是它能够倒入模具。这一特性在构建梁、柱和板等项目时尤其有利。这个过程开始于准备现场和设置模板，模板作为一个临时结构，帮助保持fresh concrete在硬化之前的位置。一旦模板就位，就可以倒入混凝土，确保它填满每一个角落和缝隙。然而，处理fresh concrete需要仔细关注时间和环境条件。例如，如果温度过高，混凝土可能会过快硬化，导致开裂和强度降低。相反，如果温度过低，固化过程可能会减缓，从而影响结构的整体完整性。因此，施工团队必须密切监测天气条件，并采取适当措施，例如使用添加剂或绝缘毯，以保护fresh concrete在固化阶段。此外，fresh concrete的可加工性也是一个重要方面。这个术语指的是混凝土在不失去所需特性的情况下，混合、运输和放置的难易程度。可加工性可能会受到水泥比、所用骨料类型和添加剂存在的影响。建筑工人通常会进行坍落度测试，以测量fresh concrete的稠度，这有助于他们判断在浇筑之前是否需要进行调整。此外，fresh concrete的使用超越了传统建筑。近年来，随着3D打印混凝土等创新应用的出现，这项技术利用fresh concrete创造出以前难以通过传统方法实现的复杂设计。随着这项技术的进步，它为建筑师和设计师打开了新的可能性，使他们能够在保持项目结构完整性的同时推动创造力的边界。总之，fresh concrete在建筑行业中发挥着至关重要的作用。其特性、可加工性以及操控它的技术可以决定一个项目的成功。理解与fresh concrete相关的特性和最佳实践对于任何参与建筑或设计结构的人来说都是必不可少的。随着技术的不断发展，fresh concrete的潜在应用只会扩大，使其成为未来建筑中值得关注的激动人心的材料。