Traditional Culture Encyclopedia - Weather forecast - How to ensure the safety and smoothness of urban expressways and main roads?

How to ensure the safety and smoothness of urban expressways and main roads?

Road construction is an important part of urban infrastructure construction, and asphalt pavement is the key link of road construction. This paper will discuss how to ensure the safety and smoothness of urban expressways and main roads from two aspects: the water absorption rate of gravel layer and asphalt surface layer.

The broken layer is controlled within 26%

The broken layer of asphalt pavement is an important link in road construction. In order to ensure the quality of the road, the coarse aggregate of the broken layer should be strictly controlled within 26% to achieve high-quality surface effect.

The water absorption rate is lower than 2%

The water absorption of asphalt pavement is also a problem that needs attention in road construction. In order to ensure the durability of the road, the water absorption rate should be controlled within 2% to avoid safety problems such as road slippage in rainy days.