Archaeological research found that the classical period Shandong asphalt, bitumen spot early as the first early classical period in 1200, people have begun to use natural asphalt, in the production of weapons and tools used asphalt as decorations, add color to carvings. Especially in the Mesopotamia region, due to the natural asphalt bitumen sufficient amount implication wholesale, bitumen is widely used. Sumerian people living there are covered with natural asphalt on the outside of the vessel and the ship. In addition, they have begun to make use of natural asphalt binder in the clay. Among them, the conservation asphalt pavement is usually divided into three categories: preventive maintenance, corrective maintenance, emergency maintenance. These three types of conservation based on road usage can be selected, each of the conservation needs of different types and methods of conservation and maintenance equipment. Three conservation measures the difference is mainly reflected in the length of road conditions and traffic. Of course, no clear boundaries between the three. Asphalt uses three levels of chemical quality assurance (certification), bitumen provided by the Jinan Chemical Co., Ltd. three levels. Jinan three ping Chemical Co., Ltd. (www.sanpinghuagong.com) Shandong Jinan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Three-ping Chemical leadership with the staff warmly welcome all inquiries negotiations to create three levels of chemical better future.