pozzolana

简明释义

英[ˌpɒtsəˈlɑːnə]美[ˌpɑtswəˈlɑnɑ]

n. 火山灰（等于 pozzuolana）

英英释义

单词用法

同义词

反义词

例句

1.This mixture of pozzolana and lime was then added to an aggregate.

人们把火山灰与石灰的混合物加到集料中。

2.Microsilica is a sort of tiny pozzolana with high-active silicon dioxide.

硅灰是一种极细的火山灰质的高活性二氧化硅。

3.Microsilica is a sort of tiny pozzolana with high-active silicon dioxide.

硅灰是一种极细的火山灰质的高活性二氧化硅。

4.The ancient Romans used pozzolana to create durable concrete structures.

古罗马人使用火山灰来建造耐用的混凝土结构。

5.In Italy, pozzolana is a key ingredient in many traditional mortars.

在意大利，火山灰是许多传统砂浆的关键成分。

6.Modern architects often incorporate pozzolana in their eco-friendly building designs.

现代建筑师常常在他们的环保建筑设计中融入火山灰。

7.Using pozzolana in construction helps reduce the carbon footprint.

在建筑中使用火山灰有助于减少碳足迹。

8.The addition of pozzolana can enhance the strength of cement mixtures.

添加火山灰可以增强水泥混合物的强度。

作文

The use of natural materials in construction has been a practice that dates back to ancient civilizations. One such material that has gained recognition over the years is pozzolana, a volcanic ash that, when mixed with lime and water, creates a strong and durable cement-like substance. The history of pozzolana can be traced back to the Roman Empire, where it was extensively used in the construction of monumental structures such as the Pantheon and aqueducts. The Romans discovered that pozzolana had remarkable binding properties, which allowed them to create concrete that could withstand the test of time and environmental conditions.In modern times, the interest in pozzolana has been rekindled due to the growing emphasis on sustainable building practices. As the world grapples with the challenges of climate change and resource depletion, the construction industry is looking for ways to reduce its carbon footprint. Traditional Portland cement production is highly energy-intensive and contributes significantly to greenhouse gas emissions. In contrast, the use of pozzolana offers an eco-friendly alternative, as it can partially replace Portland cement in concrete mixes, thereby reducing the overall carbon emissions associated with construction.Moreover, pozzolana enhances the performance of concrete. When added to concrete, it improves workability, reduces permeability, and increases resistance to aggressive environmental factors such as sulfates and chlorides. This makes structures more durable and less prone to damage over time. Many countries, particularly those located near volcanic regions, have abundant supplies of pozzolana, making it a readily available resource for sustainable construction.The versatility of pozzolana extends beyond just being a supplementary cementitious material. It can also be utilized in various applications, including road construction, masonry, and even in the production of lightweight concrete blocks. Its fine particles help in achieving a smoother finish and better bonding between materials, contributing to the overall quality of construction projects.Educational institutions and research organizations are increasingly focusing on the study of pozzolana and its properties. By conducting experiments and field studies, they aim to uncover new ways to optimize its use in construction. This research not only helps in understanding the material better but also promotes innovation in the development of new building technologies that leverage the benefits of pozzolana.In conclusion, pozzolana is more than just a historical material; it is a vital component of modern sustainable construction practices. Its ability to enhance the durability and performance of concrete, coupled with its environmental benefits, positions it as a key player in the future of building materials. As we move towards a more sustainable future, the revival and application of pozzolana will undoubtedly play a crucial role in shaping the construction industry. By embracing such natural materials, we can build structures that are not only functional and aesthetically pleasing but also environmentally responsible, ensuring a better planet for future generations.

火山灰是一种自然材料，早在古代文明中就被广泛应用于建筑中。火山灰与石灰和水混合后，会形成一种强韧耐用的水泥状物质。火山灰的历史可以追溯到罗马帝国，当时它被广泛用于建造如万神殿和水道等宏伟的建筑。罗马人发现，火山灰具有卓越的粘合特性，使他们能够制造出能经受时间考验和环境条件的混凝土。在现代，随着对可持续建筑实践日益关注，火山灰再次受到重视。面对气候变化和资源枯竭的挑战，建筑行业正在寻找减少碳足迹的方法。传统波特兰水泥的生产过程能源密集，并显著贡献温室气体排放。相比之下，使用火山灰提供了一种环保替代方案，因为它可以部分替代混凝土中的波特兰水泥，从而减少与建筑相关的整体碳排放。此外，火山灰还增强了混凝土的性能。添加到混凝土中时，它改善了可加工性，降低了渗透性，并提高了对硫酸盐和氯化物等侵蚀性环境因素的抵抗力。这使得结构更加耐用，不易受到时间的损害。许多国家，尤其是位于火山地区的国家，都拥有丰富的火山灰资源，使其成为可持续建筑的现成材料。火山灰的多功能性不仅限于作为补充水泥材料。它还可以用于各种应用，包括道路建设、砌体，甚至轻质混凝土块的生产。其细小颗粒有助于实现更光滑的表面和更好的材料间粘结，从而提高建筑项目的整体质量。教育机构和研究组织越来越关注对火山灰及其特性的研究。通过进行实验和实地研究，他们旨在揭示优化其在建筑中使用的新方法。这项研究不仅有助于更好地理解该材料，还促进了新建筑技术的创新发展，这些技术利用了火山灰的优势。总之，火山灰不仅仅是一种历史材料；它是现代可持续建筑实践中的重要组成部分。它增强混凝土的耐久性和性能，加上其环境效益，使其在未来建筑材料中占据关键地位。随着我们向更可持续的未来迈进，火山灰的复兴和应用无疑将在塑造建筑行业中发挥重要作用。通过采用这种自然材料，我们可以建造出既功能齐全、美观，又对环境负责的结构，为未来世代创造一个更美好的星球。