Asphalt is mainly used as infrastructure materials, raw materials and fuel, and its application scope is such as transportation (highway, railway, aviation, etc. ), construction, agriculture, hydraulic engineering, industry (extractive industry, manufacturing), civil engineering and other departments. Asphalt is the product of crude oil processing. It is black or dark brown viscous liquid or solid at room temperature, mainly containing soluble trichloroethylene hydrocarbon derivatives. Its nature and composition are different due to different sources and formation methods. Asphalt, like petroleum, is a complex organic mixture with no fixed chemical composition and physical constants. Many petroleum minerals form a continuous series in transitional form. This brings many difficulties to classification and recognition. At present, highway construction and maintenance are the main consumption areas of modified asphalt. Since 2005, the highway construction in China has maintained a sustained and steady growth. The national highway length increased from 3,345,200 kilometers in 2005 to 4,654,380 kilometers in 2065, with a compound growth rate of 3.48%.

Due to the steady growth of traffic construction, the consumption of modified asphalt in China has increased rapidly. The analysis of Forecast and Analysis Report on Production and Marketing Demand and Investment of Asphalt Industry in China shows that the consumption of modified asphalt in China has increased from 6,543,800+660,000 tons in 2006 to more than 4 million tons, with a compound annual growth rate of 25%, showing a strong development momentum. According to Qianwang.com's analysis, the arrival of the climax of western expressway construction will bring new opportunities for the development of modified asphalt industry in China. It is estimated that the demand for modified asphalt for the construction and maintenance of western expressways is expected to approach 8 million tons during the Twelfth Five-Year Plan period, which has cultivated huge market demand and strong growth potential for the development of modified asphalt industry in China.