Asphalt content | asphalt | three levels of chemical

Asphalt is the residue after the distillation of crude oil. Natural asphalt is stored in the ground, forming a seam or some accumulation in the crust surface. Bitumen is mainly used in paints, plastics, rubber and other industries as well, such as pavement. In recent years, the most commonly used method is based on L · W · Colbert way a bitumen is separated into saturates, aromatics four components, such as resins and asphaltenes. Content of each component between the asphalt and the technical nature of the bitumen in the presence of a certain regularity, as shown. [Via specialized asphalt additives, 1950, at low temperature asphalt construction possible (referred to as cold asphalt). In order to determine the appropriate thickness of the asphalt structure Shandong asphalt, bitumen factory in 1959, in the Austrian Development of research conducted without interference by isotope method and has been successfully verified. In order to make the airport runway in use as soon as possible, in 1963 there has been a dry asphalt construction process in the UK. 1968 shortly after the first appearance of the Ma-Ti asphalt construction. 1970s in the United States began the practice of recycling asphalt. For better sealing effect, in 1979 began using asphalt in the dump project. Asphalt content | asphalt | Chemical offers three levels by three flat Chemical Co., Ltd., Jinan. Jinan three flat Chemical Co. (www.sanpinghuagong.com) strong, credible, in Jinan, Shandong and other chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve the level of innovative ideas will lead the three chemicals into the brilliant and you work for a better future!