portland cement

简明释义

波特兰水泥

英英释义

例句

1.When mixing mortar, it's essential to use high-quality portland cement.

在混合砂浆时，使用高质量的波特兰水泥是至关重要的。

2.The contractor recommended using portland cement for the sidewalk to withstand heavy foot traffic.

承包商建议在人行道上使用波特兰水泥以承受重的行人流量。

3.Mixing portland cement with sand and gravel creates a durable concrete.

将波特兰水泥与砂和碎石混合可以制成耐用的混凝土。

4.The construction team decided to use portland cement for the foundation due to its strength.

施工团队决定使用波特兰水泥作为基础材料，因为它的强度很高。

5.For the new bridge, engineers specified the use of portland cement to ensure longevity.

为了新桥，工程师指定使用波特兰水泥以确保其耐久性。

作文

Portland cement is a fundamental material in the construction industry, known for its exceptional strength and durability. It is made from a mixture of limestone and clay, which are heated to a high temperature to form clinker. This clinker is then finely ground to produce the fine powder we know as portland cement. The name originates from the Isle of Portland in England, where this type of cement was first developed in the early 19th century. The invention of portland cement revolutionized construction, allowing for the creation of stronger and more reliable structures.One of the key characteristics of portland cement is its ability to harden when mixed with water. This process, known as hydration, involves a chemical reaction that results in the formation of a solid mass. The strength of concrete made with portland cement increases over time, making it an ideal choice for various construction projects, from residential buildings to massive infrastructure works like bridges and dams.The versatility of portland cement is another reason for its widespread use. It can be combined with various aggregates, such as sand and gravel, to create different types of concrete. Additionally, additives can be introduced to modify its properties, enhancing workability, setting time, or resistance to environmental conditions. This adaptability allows engineers and architects to tailor concrete mixtures to meet specific project requirements, ensuring optimal performance.Environmental concerns have also led to innovations in the production of portland cement. Traditional manufacturing processes release significant amounts of carbon dioxide, contributing to climate change. In response, the industry has been exploring alternative materials and methods to reduce emissions. For instance, using supplementary cementitious materials, such as fly ash or slag, can partially replace portland cement in concrete mixes, resulting in lower carbon footprints while maintaining structural integrity.In conclusion, portland cement plays a crucial role in modern construction. Its strength, versatility, and adaptability make it a preferred choice for builders and engineers. As the industry continues to evolve, finding sustainable ways to produce and utilize portland cement will be essential for minimizing environmental impacts while meeting the demands of future construction projects. Understanding the significance of portland cement not only highlights its importance in the built environment but also emphasizes the need for responsible practices in its production and use.

波特兰水泥是建筑行业中的一种基本材料，以其卓越的强度和耐久性而闻名。它由石灰石和粘土的混合物制成，这些材料在高温下加热以形成熟料。然后将这些熟料细磨，生产出我们所知道的细粉状的波特兰水泥。这个名字源于英格兰的波特兰岛，这种水泥类型在19世纪初首次开发。波特兰水泥的发明彻底改变了建筑业，使得更强大和更可靠的结构得以创造。波特兰水泥的一个关键特性是它与水混合时能够硬化。这一过程被称为水化，涉及到一种化学反应，导致形成固体块。用波特兰水泥制成的混凝土的强度随着时间的推移而增加，使其成为住宅建筑到大型基础设施工程（如桥梁和水坝）的理想选择。波特兰水泥的多功能性是其广泛使用的另一个原因。它可以与各种骨料（如沙子和砾石）结合，创造出不同类型的混凝土。此外，可以引入添加剂以修改其属性，增强可加工性、凝固时间或对环境条件的抵抗力。这种适应性使工程师和建筑师能够根据具体项目要求定制混凝土混合物，确保最佳性能。环境问题也促使了波特兰水泥生产中的创新。传统的制造过程会释放大量二氧化碳，助长气候变化。作为回应，行业正在探索替代材料和方法，以减少排放。例如，使用补充水泥材料，如粉煤灰或矿渣，可以部分替代混凝土配方中的波特兰水泥，从而降低碳足迹，同时保持结构完整性。总之，波特兰水泥在现代建筑中发挥着至关重要的作用。其强度、多功能性和适应性使其成为建筑商和工程师的首选。随着行业的不断发展，找到可持续的方法来生产和利用波特兰水泥将对减少环境影响、满足未来建筑项目的需求至关重要。理解波特兰水泥的重要性不仅突显了其在建筑环境中的重要性，也强调了在其生产和使用中负责任的做法的必要性。