As you know, there is several standards for oxidized bitumen specification, ( e.g. performance grade , viscosity grade , penetration grade). Now I want to access china bitumen standards. Thanks all
ASPHALT INSTITUTE, AASHTO, employees certainly have.....Please find some contacts. It is the Fastest Way. Also, you can contact colleagues from China Asphalt Institute.
The Chinese standard for oxidized bitumen grades is known as GB/T 23851-2017, which specifies the technical requirements for oxidized bitumen used in the construction of roads and other related applications.
According to this standard, oxidized bitumen is classified into four grades:
- Grade 85/25
- Grade 90/15
- Grade 95/25
- Grade 105/35
Each grade has its own set of technical requirements for properties such as softening point, penetration, ductility, solubility, and loss on heating.
The standard also provides guidelines for the production, testing, and packaging of oxidized bitumen, as well as rules for sampling and inspection.
I hope this information helps. Let me know if you have any further questions.
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