急急急 翻译一段文章

来源：百度知道 编辑：UC知道 时间：2024/06/18 08:36:39
Bitumen is obtained from crude oil. The reader may be familiar with the concept of the fractionation of oil a process in which crude oil is heated and the various groups of hydrocarbons which form this mixture of materials are driven off, the most volatile (petrol)leaving the system first and as the temperature rises so kerosene, gas oil and other heavier fractions leave the mixture until a residue of bitumen remains. This residue is a mixture of many different and complex materials whose composition and properties will depend on its source and manufacture. Bitumen is used in a variety of ways to stabilize and strengthen road stone, particularly in the highly stressed upper layers of the pavement.
Properties of bitumen which are of interest to the highway engineer are their ability to resist deformation, their response to changes in temperature, and their solubility in other hydrocarbons.

沥青是从原油。读者可能不太熟悉的概念，石油分馏过程中，原油加热和各种团体的碳氢化合物构成这一混合物材料赶走，最不稳定（汽油）离开该系统的第一和温度升高，使煤油，柴油和其他重分数离开混合直到残留沥青仍然存在。这是一种混合残留的许多不同的和复杂的材料，其组成和性质将取决于其来源和生产。沥青是用来以各种方式，以稳定和加强路石，特别是在高度强调上层路面。
性能的沥青有兴趣的公路工程是他们有能力抵抗变形，其反应温度的变化，它们的溶解度在其他碳氢化合物。