GB/T 920-2023 Road Pavement Grade and Surface Type Codes is a Chinese national standard that provides a comprehensive classification system for road pavement grades and surface types. This standard plays a crucial role in road construction and maintenance, as it helps engineers and technicians to accurately identify and classify different types of road surfaces.
The standard consists of a series of codes that represent various road pavement grades and surface types. These codes are organized in a systematic manner, making it easier for professionals to access and utilize the information. By utilizing this standard, road construction projects can be executed more efficiently and effectively.
This standard covers a wide range of road pavement grades, including expressways, national highways, provincial highways, and rural roads. Each grade has specific requirements for factors such as pavement thickness, load-bearing capacity, and surface smoothness. By adhering to these codes, road constructors can ensure that the road surfaces are built to the appropriate standards for their designated usage.
Furthermore, this standard also includes codes for different types of road surface materials, such as asphalt concrete, cement concrete, and gravel. These codes provide guidance on the selection and application of suitable materials for specific road conditions and traffic loads. By choosing the appropriate surface type, road constructors can enhance the durability and safety of the roads.
In conclusion, GB/T 920-2023 Road Pavement Grade and Surface Type Codes is an essential standard for the road construction industry in China. It enables professionals to classify and select suitable road pavement grades and surface types, ensuring the quality and functionality of road surfaces. By following this standard, road constructors can build and maintain roads that meet the needs of various traffic conditions and enhance overall transportation infrastructure.
GB/T 920-2023 history
2023GB/T 920-2023 Highway Pavement Grades and Surface Type Codes
2002GB/T 920-2002 Code for classification and type of highway pavement