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Permeable concrete

1. Definition

Eco-permeable concrete, also known as drainage concrete, is a new type of environmentally friendly paving material made by mixing and blending a certain proportion of small pebbles, high-grade concrete, permeable admixtures, water, color-enhancing agents, and stabilizers. It features a honeycomb structure formed by coarse aggregates bonded together with a thin paste, allowing rainwater to seep into the ground and effectively replenish groundwater. It also effectively eliminates the environmental hazards caused by pollutants like oil compounds on the ground. With its vibrant colors and landscape integration, it contributes to a more harmonious urban environment, protecting nature, maintaining ecological balance, and alleviating the urban heat island effect.

2. Permeable Concrete Construction Process

1. Mixing: Blend cement and aggregates in a proportion using a mixer to create a well-mixed material.

2. Pouring: Prior to pouring, the subgrade must be moistened with water. Otherwise, rapid water loss from the permeable concrete will reduce the bonding strength between aggregates. Simply lay the material flat on the subgrade.

3. Vibrating: Avoid excessive vibration and compaction during pouring.

4. Rolling: After vibration compaction, further compacting and leveling should be achieved using solid steel pipes or light roller compactors, for the permeable concrete mixing material.

5. Maintenance: Due to its numerous pores, permeable concrete is prone to water loss and dries quickly, thus requiring film covering for maintenance.

6. Final Product: The membrane curing time for permeable concrete should not be less than 7 days, followed by applying a layer of specialized permeable concrete sealer.