pozzolan

简明释义

英[ˈpɒz.ə.lən]美[ˈpɑː.zə.lən]

n. 火山灰水泥；火山灰（等于 pozzuolana）

英英释义

单词用法

同义词

反义词

例句

1.At the same time, the relationship between the physical-chemical properties of the harden paste and the hydration age, the pozzolan activity of the fly ash in the harden paste have been discussed.

同时讨论了粉煤灰水泥硬化浆体的物理化学性能与水化时间的关系，以及硬化浆体中粉煤灰的火山灰活性。

2.Experimental results show that the replacement of slags by pozzolan can reduce the mechanical strength of AASC, but it can be obviously favorable for the resistance to chemical corrosion and t.

研究了这些材料对碱矿渣水泥的强度、抗化学侵蚀性能以及抑制泛碱的作用。

3.At the same time, the relationship between the physical-chemical properties of the harden paste and the hydration age, the pozzolan activity of the fly ash in the harden paste have been discussed.

同时讨论了粉煤灰水泥硬化浆体的物理化学性能与水化时间的关系，以及硬化浆体中粉煤灰的火山灰活性。

4.Using natural pozzolan can be an eco-friendly alternative to traditional additives.

使用天然火山灰可以成为传统添加剂的环保替代品。

5.The use of pozzolan in concrete can enhance its durability.

在混凝土中使用火山灰可以增强其耐久性。

6.The pozzolan reacts with calcium hydroxide to form compounds that improve strength.

火山灰与氢氧化钙反应形成改善强度的化合物。

7.Adding pozzolan to cement can reduce the carbon footprint of construction.

向水泥中添加火山灰可以减少建筑的碳足迹。

8.Many ancient structures utilized pozzolan as a key ingredient.

许多古代建筑将火山灰作为关键成分。

作文

The use of natural materials in construction has been a practice for centuries, and one such material that has gained significant attention is pozzolan. Derived from volcanic ash or certain types of clay, pozzolan is known for its unique properties that enhance the performance of concrete. When mixed with lime and water, pozzolan reacts chemically to form compounds that contribute to the strength and durability of the resulting material. This makes it an invaluable resource in the field of sustainable construction.Historically, the Romans were among the first to recognize the benefits of pozzolan. They used it extensively in their structures, such as the Pantheon and aqueducts, which have stood the test of time. The incorporation of pozzolan into their building practices not only improved the longevity of their constructions but also allowed them to create more complex architectural forms. Today, modern engineers and architects are revisiting these ancient techniques, realizing that pozzolan can significantly reduce the carbon footprint of concrete production.One of the main advantages of using pozzolan is its ability to improve the workability of concrete. This is particularly important in large-scale construction projects where the ease of mixing and pouring concrete can affect overall efficiency. Additionally, pozzolan enhances the resistance of concrete to chemical attacks, making it suitable for structures exposed to harsh environmental conditions.Moreover, the use of pozzolan contributes to the sustainability of construction materials. Traditional Portland cement production is energy-intensive and produces a considerable amount of carbon dioxide. By substituting a portion of the cement with pozzolan, we can reduce greenhouse gas emissions significantly. This aligns with the global push towards greener building practices and the need for the construction industry to adapt to climate change challenges.In recent years, research has shown that various types of pozzolan, including fly ash, silica fume, and natural pozzolans, can be used effectively in different applications. Fly ash, a byproduct of coal combustion, is widely used due to its availability and cost-effectiveness. Silica fume, on the other hand, is a more refined material that offers exceptional strength and durability when used in high-performance concrete mixes. Natural pozzolan, sourced from volcanic regions, provides unique properties that can enhance specific characteristics of concrete.As the construction industry continues to evolve, the role of pozzolan is becoming increasingly important. Its ability to improve the mechanical properties of concrete while promoting sustainability makes it a preferred choice for many modern projects. Architects and engineers are now more inclined to incorporate pozzolan into their designs, recognizing its potential to create lasting structures that are both functional and environmentally friendly.In conclusion, pozzolan is not just a historical material; it is a key player in the future of sustainable construction. As we face the challenges of climate change and resource scarcity, materials like pozzolan will be essential in shaping a more sustainable built environment. By learning from the past and integrating innovative materials into our construction practices, we can ensure that our buildings are not only strong and durable but also kind to our planet.

在建筑中使用自然材料已经有几个世纪的历史，其中一种引起显著关注的材料是火山灰。它源自火山灰或某些类型的粘土，因其独特的性能而闻名，可以增强混凝土的表现。当与石灰和水混合时，火山灰会发生化学反应，形成有助于提高所得到材料的强度和耐久性的化合物。这使得它在可持续建筑领域成为一项宝贵的资源。历史上，罗马人是最早认识到火山灰好处的人之一。他们在自己的建筑中广泛使用它，例如万神殿和水道，这些建筑经受住了时间的考验。将火山灰纳入他们的建筑实践不仅提高了建筑物的耐久性，还使他们能够创造出更复杂的建筑形式。如今，现代工程师和建筑师正在重新审视这些古老的技术，意识到火山灰可以显著减少混凝土生产的碳足迹。使用火山灰的主要优点之一是它能改善混凝土的可加工性。这在大型建筑项目中尤为重要，因为混合和浇筑混凝土的便利性会影响整体效率。此外，火山灰增强了混凝土对化学侵蚀的抵抗力，使其适用于暴露于恶劣环境条件下的结构。此外，使用火山灰有助于建筑材料的可持续性。传统波特兰水泥的生产能耗高且产生大量二氧化碳。通过用火山灰替代部分水泥，我们可以显著减少温室气体排放。这与全球推动绿色建筑实践以及建筑行业需要适应气候变化挑战的趋势一致。近年来，研究表明，各种类型的火山灰，包括粉煤灰、硅灰和天然火山灰，都可以有效地用于不同的应用。粉煤灰是煤燃烧的副产品，由于其可获得性和成本效益而被广泛使用。另一方面，硅灰是一种更精细的材料，在高性能混凝土混合物中使用时提供卓越的强度和耐久性。天然火山灰，来自火山地区，提供独特的性能，可以增强混凝土的特定特性。随着建筑行业的不断发展，火山灰的作用变得越来越重要。它改善混凝土机械性能的能力，同时促进可持续性，使其成为许多现代项目的首选。建筑师和工程师现在更倾向于将火山灰纳入他们的设计中，认识到其在创建既功能性又环保的持久结构方面的潜力。总之，火山灰不仅仅是一种历史材料；它是可持续建筑未来的关键角色。面对气候变化和资源匮乏的挑战，像火山灰这样的材料在塑造更可持续的建筑环境中将至关重要。通过借鉴过去并将创新材料融入我们的建筑实践中，我们可以确保我们的建筑不仅坚固耐用，而且对我们的星球友好。