asphalt cement

简明释义

沥青膏

英英释义

例句

1.The contractor recommended using a specific brand of asphalt cement for better adhesion.

承包商建议使用特定品牌的沥青水泥以获得更好的粘附性。

2.Before laying the pavement, we need to heat the asphalt cement to the right temperature.

在铺设路面之前，我们需要将沥青水泥加热到合适的温度。

3.The highway was resurfaced using high-quality asphalt cement.

高速公路采用高质量的沥青水泥进行重铺。

4.To improve durability, they mixed polymer with the asphalt cement.

为了提高耐久性，他们将聚合物与沥青水泥混合。

5.The construction crew applied asphalt cement to seal the cracks in the road.

施工队使用沥青水泥来密封道路上的裂缝。

作文

Asphalt is a crucial material used in the construction and maintenance of roads, parking lots, and various other surfaces. One of the key components of asphalt is asphalt cement, which serves as the binder that holds the aggregate together. Asphalt cement is a sticky, black, and highly viscous liquid that is derived from the distillation of crude oil. It plays a vital role in ensuring the durability and longevity of asphalt pavements. In this essay, we will explore the properties, production process, and applications of asphalt cement in detail.Firstly, the properties of asphalt cement are essential for its performance in various conditions. Its viscosity allows it to flow and fill the voids between aggregates, creating a solid mass that can withstand heavy traffic loads. The chemical composition of asphalt cement includes a mixture of hydrocarbons, which contribute to its adhesive qualities. This adhesion is crucial as it prevents water infiltration, which can lead to pavement deterioration. Additionally, asphalt cement possesses excellent temperature susceptibility, meaning it can remain flexible in low temperatures and maintain stability in high temperatures.The production of asphalt cement involves several steps. Initially, crude oil undergoes a refining process where it is heated and distilled. During this process, lighter fractions such as gasoline and diesel are separated from heavier fractions. The remaining heavy residue is further treated to produce asphalt cement. This treatment may involve processes like air blowing, which enhances the properties of asphalt cement by increasing its viscosity and resistance to deformation. The result is a high-quality product that meets industry standards for construction use.In terms of applications, asphalt cement is predominantly used in road construction. When mixed with aggregates, it forms asphalt concrete, which is the primary material used for paving highways, streets, and airport runways. The flexibility and strength of asphalt cement allow the pavement to endure heavy vehicular traffic and resist cracking. Moreover, asphalt cement is also utilized in roofing applications, where it serves as a waterproofing agent for flat roofs. Its adhesive properties enable it to bond with various roofing materials, providing a reliable barrier against water infiltration.Furthermore, the environmental impact of asphalt cement should not be overlooked. While it is derived from petroleum, advancements in technology have led to the development of recycled asphalt products. Reclaimed asphalt pavement (RAP) can be processed and reused in new asphalt mixtures, reducing the demand for virgin asphalt cement and minimizing waste. This recycling process not only conserves resources but also contributes to sustainability in the construction industry.In conclusion, asphalt cement is an indispensable material in modern construction, particularly in road building. Its unique properties, production methods, and wide range of applications make it essential for creating durable and long-lasting pavements. As the construction industry continues to evolve, the focus on sustainable practices will likely enhance the use of recycled materials, ensuring that asphalt cement remains a key component in infrastructure development for years to come.

沥青是用于道路、停车场和各种其他表面的建设和维护的重要材料。沥青的关键组成部分之一是沥青水泥，它作为粘合剂将骨料结合在一起。沥青水泥是一种粘稠的黑色液体，具有高度的粘性，源自原油的蒸馏。它在确保沥青路面的耐久性和长寿命方面起着至关重要的作用。在这篇文章中，我们将详细探讨沥青水泥的性质、生产过程和应用。首先，沥青水泥的性质对于其在各种条件下的性能至关重要。其粘度使其能够流动并填充骨料之间的空隙，形成一个能够承受重型交通负荷的固体块。沥青水泥的化学成分包括一系列烃类，这些成分有助于其粘附特性。这种粘附性至关重要，因为它可以防止水渗透，从而导致路面退化。此外，沥青水泥具有优异的温度敏感性，这意味着它在低温下仍能保持柔韧性，并在高温下保持稳定。沥青水泥的生产涉及几个步骤。最初，原油经过精炼过程，在加热和蒸馏过程中，较轻的馏分如汽油和柴油与较重的馏分分离。剩余的重残渣进一步处理以生产沥青水泥。此处理可能涉及空气吹入等工艺，这增强了沥青水泥的性能，提高了其粘度和变形抗力。最终得到的是一种符合行业标准的高质量产品，适合建筑使用。在应用方面，沥青水泥主要用于道路建设。当与骨料混合时，它形成沥青混凝土，这是铺设高速公路、街道和机场跑道的主要材料。沥青水泥的灵活性和强度使得路面能够承受重型车辆的交通并抵抗开裂。此外，沥青水泥还用于屋顶应用，作为平屋顶的防水剂。其粘附特性使其能够与各种屋顶材料结合，提供可靠的防水屏障。此外，沥青水泥的环境影响不容忽视。虽然它源自石油，但技术的进步已经导致回收沥青产品的发展。可再生沥青路面（RAP）可以被加工并在新的沥青混合物中重复使用，从而减少对原始沥青水泥的需求并最小化废物。这一回收过程不仅节约了资源，还促进了建筑行业的可持续发展。总之，沥青水泥是现代建筑中不可或缺的材料，尤其是在道路建设中。其独特的性质、生产方法和广泛的应用使其成为创建耐用和持久路面的必需品。随着建筑行业的不断发展，对可持续实践的关注可能会增强回收材料的使用，确保沥青水泥在未来几年仍然是基础设施发展的关键组成部分。