surface retarder

简明释义

表面层缓凝剂

英英释义

例句

1.After applying the surface retarder, we waited for several hours before washing off the top layer.

在施加了表面减缓剂后，我们等待了几个小时才冲洗掉表层。

2.The contractor applied a surface retarder to delay the setting of the concrete surface.

承包商在混凝土表面施加了表面减缓剂以延迟其凝固。

3.Using a surface retarder can help achieve a better finish in decorative concrete work.

使用表面减缓剂可以帮助在装饰性混凝土工作中获得更好的表面效果。

4.The surface retarder was crucial for achieving the desired texture on the exposed aggregate.

这款表面减缓剂对于实现预期的暴露骨料纹理至关重要。

5.It's important to follow the manufacturer's instructions when using a surface retarder.

使用表面减缓剂时，遵循制造商的说明非常重要。

作文

In the world of construction and civil engineering, achieving the perfect finish on concrete surfaces is crucial. One of the most effective methods to enhance the aesthetic appeal and durability of concrete is through the use of a surface retarder. A surface retarder is a chemical compound applied to freshly poured concrete to delay the setting of the surface layer while allowing the underlying concrete to cure properly. This process creates a unique finish that exposes the aggregate within the concrete, resulting in a visually appealing texture that is both functional and attractive.The application of a surface retarder is particularly beneficial in decorative concrete projects, where the appearance of the finished product is paramount. By controlling the setting time of the top layer, contractors can wash away the cement paste after a specific period, revealing the beautiful aggregates beneath. This technique not only enhances the visual quality but also increases the slip resistance of the surface, making it safer for pedestrians.Moreover, using a surface retarder can significantly reduce the risk of cracking and scaling in concrete surfaces. When concrete cures too quickly, it can lead to uneven shrinkage and stress, resulting in cracks that compromise the integrity of the structure. A surface retarder helps maintain moisture levels in the top layer, ensuring a more uniform curing process. This is especially important in hot weather conditions, where rapid evaporation can pose challenges for concrete finishing.The application process of a surface retarder is relatively straightforward. After pouring the concrete, the retarder is sprayed or brushed onto the surface before it begins to set. The timing of this application is critical; it must be done at the right moment to achieve the desired effect. Once applied, the surface retarder works by inhibiting the hydration of the cement particles on the surface, allowing the concrete beneath to harden normally.After a specified time, usually ranging from a few hours to a day, the surface is washed with water, removing the top layer of cement paste and exposing the aggregate. This process not only creates a stunning finish but also allows for various design options, including the incorporation of colored aggregates or patterns.In conclusion, the use of a surface retarder in concrete construction is an innovative technique that offers numerous benefits. It enhances the aesthetic quality of concrete surfaces, improves safety, and reduces the likelihood of defects such as cracking. As the construction industry continues to evolve, the importance of utilizing tools like surface retarders will become increasingly significant in producing high-quality, durable, and visually appealing concrete structures. With the right application and technique, a surface retarder can transform ordinary concrete into extraordinary works of art, demonstrating the potential of modern construction methods and materials.

在建筑和土木工程的世界中，获得混凝土表面的完美饰面至关重要。增强混凝土的美观性和耐久性的最有效方法之一是使用表面减速剂。表面减速剂是一种化学化合物，涂抹在新浇注的混凝土上，以延迟表层的固化，同时允许下面的混凝土正常固化。这个过程创造了一个独特的饰面，暴露出混凝土中的骨料，产生一种既功能性又美观的纹理。在装饰性混凝土项目中，应用表面减速剂尤其有益，因为成品的外观至关重要。通过控制顶层的固化时间，承包商可以在特定时间后冲洗掉水泥浆，揭示出下面美丽的骨料。这种技术不仅增强了视觉质量，还增加了表面的防滑性，使其对行人更安全。此外，使用表面减速剂可以显著减少混凝土表面开裂和剥落的风险。当混凝土固化得太快时，会导致不均匀的收缩和应力，从而造成裂缝，损害结构的完整性。表面减速剂有助于保持顶层的湿度水平，确保更均匀的固化过程。这在炎热的天气条件下尤其重要，因为快速蒸发可能会给混凝土饰面带来挑战。表面减速剂的施用过程相对简单。在浇注混凝土后，在其开始固化之前，将减速剂喷洒或刷涂在表面上。这个应用的时机至关重要；必须在正确的时刻进行，以达到预期效果。一旦施用，表面减速剂通过抑制表面水泥颗粒的水化来发挥作用，允许下面的混凝土正常硬化。在规定的时间后，通常从几个小时到一天，表面用水冲洗，去除水泥浆的顶部，暴露出骨料。这个过程不仅创造了惊艳的饰面，还允许各种设计选项，包括融入彩色骨料或图案。总之，在混凝土施工中使用表面减速剂是一种创新技术，提供了许多好处。它增强了混凝土表面的美观性，提高了安全性，并减少了开裂等缺陷的可能性。随着建筑行业的不断发展，利用像表面减速剂这样的工具的重要性将在生产高质量、耐用且视觉吸引力强的混凝土结构中变得越来越显著。通过正确的应用和技术，表面减速剂可以将普通混凝土转变为非凡的艺术作品，展示现代建筑方法和材料的潜力。