coarse sand

简明释义

粗砂

英英释义

例句

1.The beach was covered in coarse sand, making it perfect for building sandcastles.

海滩上覆盖着粗砂，非常适合堆沙堡。

2.For the aquarium, I chose coarse sand because it is less likely to compact and allows for better water flow.

为了水族箱，我选择了粗砂，因为它不容易压实，并且能更好地促进水流。

3.The construction workers mixed cement with coarse sand to create a strong foundation.

建筑工人将水泥与粗砂混合，以创建一个坚固的基础。

4.In landscaping, coarse sand is often mixed with soil to improve drainage.

在园艺中，粗砂通常与土壤混合，以改善排水。

5.The artist used coarse sand in her sculptures to give them a rough texture.

这位艺术家在她的雕塑中使用了粗砂，以赋予它们粗糙的质感。

作文

When discussing natural materials, one often encounters the term coarse sand. This type of sand is characterized by its larger grain size compared to fine sand, making it particularly useful in various construction and landscaping applications. The grains of coarse sand are typically between 0.5 mm and 2 mm in diameter, which gives it a gritty texture that can be easily felt between one's fingers. This physical characteristic not only influences its tactile properties but also its functional uses in different projects.One of the primary uses of coarse sand is in concrete production. When mixed with cement and water, coarse sand helps create a strong and durable concrete mix. The larger grains provide better drainage and reduce the likelihood of cracking, making it an essential component in building foundations, sidewalks, and other structures that require a solid base. Additionally, coarse sand can be used in mortar for bricklaying, where it contributes to the bonding strength and stability of the masonry.In landscaping, coarse sand serves several purposes. It is often mixed with soil to improve drainage, particularly in areas where water tends to pool. By incorporating coarse sand into the soil, gardeners can create a more aerated environment for plants, allowing roots to breathe and absorb nutrients more effectively. This is especially beneficial for succulents and other drought-resistant plants that thrive in well-draining conditions.Another interesting application of coarse sand is in the creation of sports fields and playgrounds. For instance, when constructing a volleyball court or a beach soccer field, coarse sand provides the right amount of cushioning while allowing for proper drainage. This ensures that the playing surface remains safe and enjoyable for athletes, reducing the risk of injuries caused by uneven or muddy ground.Despite its many advantages, it is important to note that coarse sand does have some limitations. For example, when used in certain types of plaster or finish coats, the larger grains can create a rough surface that may not be aesthetically pleasing. In such cases, finer sands may be preferred to achieve a smoother finish. Therefore, understanding the specific requirements of a project is crucial when deciding whether to use coarse sand or another type of sand.In conclusion, coarse sand is a versatile material with numerous applications in construction, landscaping, and recreational activities. Its unique properties make it an essential component in creating strong, durable structures and enhancing the aesthetic appeal of outdoor spaces. As we continue to explore the various uses of natural materials, coarse sand will undoubtedly remain a valuable resource in our efforts to build and beautify our environments.

当讨论自然材料时，人们常常会遇到“粗砂”这个术语。这种类型的沙子以其较大的颗粒尺寸而闻名，相较于细沙，它在各种建筑和园艺应用中尤为有用。“粗砂”的颗粒直径通常在0.5毫米到2毫米之间，这使得它具有一种颗粒感，可以很容易地在手指间感受到。这一物理特性不仅影响了它的触感，还影响了它在不同项目中的功能用途。“粗砂”的主要用途之一是在混凝土生产中。当与水泥和水混合时，“粗砂”有助于创造出强大且耐用的混凝土混合物。较大的颗粒提供了更好的排水能力，减少了开裂的可能性，使其成为建筑基础、人行道和其他需要坚实基础的结构中不可或缺的组成部分。此外，“粗砂”还可以用于砖砌的砂浆中，有助于提高砌体的粘结强度和稳定性。在园艺中，“粗砂”也有多种用途。它常常与土壤混合，以改善排水，尤其是在水容易积聚的地方。通过将“粗砂”融入土壤，园丁可以为植物创造一个更通气的环境，使根部能够更有效地呼吸和吸收养分。这对于多肉植物和其他耐旱植物尤为有益，因为它们在排水良好的条件下生长良好。“粗砂”的另一个有趣应用是体育场和游乐场的建设。例如，在建造排球场或沙滩足球场时，“粗砂”提供了适量的缓冲，同时允许适当的排水。这确保了比赛场地保持安全和愉快，减少了因地面不平或泥泞而导致的受伤风险。尽管“粗砂”有许多优点，但也要注意它的一些局限性。例如，在某些类型的抹灰或装饰涂层中使用时，较大的颗粒可能会产生粗糙的表面，这可能不具美观。因此，在决定是使用“粗砂”还是另一种类型的沙子时，了解项目的具体要求至关重要。总之，“粗砂”是一种多用途的材料，在建筑、园艺和娱乐活动中有着众多应用。其独特的特性使其成为创造坚固耐用结构和提升户外空间美观的重要组成部分。随着我们继续探索自然材料的各种用途，“粗砂”无疑将继续成为我们建设和美化环境的重要资源。