Road bitumen in China is commonly sorted by measuring its penetration depth, softening behavior, and internal viscosity.
The designation A70 refers to a distinct bituminous mixture developed for specialized construction projects or loading capacities.
This means A70 functions as a penetration-grade asphalt characterized by exact physical hardness and heat resistance criteria.
What is Bitumen AH70 (Chinese Grade) and How is it Used?
Bitumen AH70 is a high-quality Chinese grade bitumen. It acts like a strong glue (binder) to hold stones and sand together. People use it to make hot asphalt mixes for highways, airports, parking lots, and sidewalks.
Because it is strong and flexible, Bitumen AH70 is perfect for many construction and infrastructure projects.
Key Uses of Bitumen AH70:
Building Roads and Highways: This is the most common use. It makes road surfaces smooth, strong, and able to handle heavy trucks and bad weather.
Airport Runways: Because it is highly durable, it is used on runways where heavy airplanes land.
Waterproofing Structures:
Bitumen AH70 keeps water out. It is used to protect roofs, bridges, and underground tunnels from leaks.
Road Repairs and Maintenance: It is perfect for fixing cracks, filling potholes, and making old roads last longer.
Asphalt Emulsions: It can be mixed to create liquid coatings for surface treatments and protecting pavements.
Factory Products: Companies use it to manufacture roofing sheets, strong adhesives, and protective coatings.
Note: The best way to use Bitumen AH70 depends on your project size, local weather, and engineering plans.
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