Porous pavement roads add color to sponge city construction! The construction technology of pervious concrete is an important means to achieve the海绵ization of roads, facilitating the end-of-pipe collection of rainwater, storing moisture at the surface, nurturing groundwater and surrounding vegetation. Porosity reaches 15-25%, mitigating the urban heat island effect.
Natural aggregate permeable pavement construction steps: Mix a measured amount of stone aggregate, cement, binder, and water, wet the subgrade with water before laying, compact the subbase layer evenly, and then level and finish the surface layer with a cement smoothing machine. Cover with agricultural film for maintenance for two days after construction, followed by watering for about five to seven days. During this period, set up a separation zone to prevent pedestrian traffic. Once the surface layer is dry, apply a surface layer sealer (also known as a surface罩剂).
Exterior Aggregate Permeable Concrete Structure Composition
Exposed Aggregate Permeable Concrete Base: SR Permeable Concrete Reinforcer, 425 cement, gravel, water
Exterior Aggregate Permeable Concrete Surface: SR Permeable Concrete Enhancer, 425 Cement, Natural Washed Stone Aggregate, Water
Exposed Aggregate Permeable Concrete Surface: After construction and curing, the surface is washed with exposed aggregate cleaner, followed by applying a transparent permeable concrete protective agent (topcoat).
1. Enhance the environment aesthetics
Enhance urban environments with natural colored stones, rich in their natural hues. They can be arranged in various patterns according to planning requirements, offering a delightful return to nature. These stones are an excellent choice for colorful, permeable paving materials in sponge city landscaping.
2. High permeability
Porous paving with aggregate can achieve a porosity of 15~25%, with a permeability coefficient of up to 2mm/s, capable of retaining natural precipitation and supplementing groundwater resources.
3. Strong load-bearing capacity
The permeable concrete with exposed aggregate can meet the bearing specifications of C20 concrete, satisfying the requirements of light traffic roads in garden landscapes.
