Sponge city is a new generation of urban stormwater management concept. It means that the city can be like a sponge and have good elasticity in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called a "water elastic city".

Cities can be like sponges and have good "elasticity" in adapting to environmental changes and responding to natural disasters. The international common term is "low-impact development rainwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water. It requires The stored water will be released and utilized from time to time to realize the free movement of rainwater in the city.

Starting from ecosystem services, building water ecological infrastructure across scales and combining multiple specific technologies to build water ecological infrastructure is the core of sponge cities.

Under the new situation, sponge city is an innovative expression of promoting the construction of green buildings, the development of low-carbon cities, and the formation of smart cities. It is an organic combination of modern green new technologies and social, environmental, humanistic and other factors under the background of the new era.

The substantial application of "sponge city" materials shows excellent water permeability, pressure resistance, wear resistance, anti-skid, environmental protection, beauty and color, comfort and easy maintenance, and sound absorption and noise reduction. It has become a "breathing" urban landscape pavement that is also effective It alleviates the urban heat island effect and prevents urban roads from heating up.

Sponge cities have a long-term impact on my country's future urban development and improvement of the living environment. They should be included in the ecological city evaluation system and green building evaluation standards, and implemented through indicators such as permeable pavement paving rate, sunken green space rate, and green roof rate.

The focus of sponge city construction is the construction of sponge city pavements and sponge city roads.

Permeable roads can meet the normal traffic strength requirements of urban roads while ensuring the water permeability of the road. It solves the problem that some permeable pavements can only be used in low-demand situations such as landscape paths and bicycle paths.

Ahonesty Huacheng is equipped with a construction team and an engineer guidance team to provide overall solutions, from the production of permeable road raw materials to one-stop service for sponge city permeable paving. Huacheng provides the design and construction of permeable roads, permeable floors, and permeable pavements.