Chinese Standard Bitumen refers to paving-grade bitumen produced and tested in accordance with Chinese national standards, commonly known as GB standards. These standards define key quality parameters such as penetration, softening point, ductility, viscosity, flash point, solubility, and resistance to aging. Chinese standard bitumen is widely used in road construction, asphalt pavement, highways, bridges, airports, and other infrastructure projects, where stable performance and consistent quality are required.

Different grades of Chinese Standard Bitumen are selected according to climate conditions, traffic loads, pavement design, and project specifications. The material provides strong adhesion to aggregates, good waterproofing properties, durability, and resistance to deformation under traffic loads. Compliance with the applicable Chinese standard ensures that the supplied bitumen meets specified technical requirements and provides reliable performance during asphalt mixing, paving, compaction, and long-term service.