Renovation Project on Both Sides of Fengpu Avenue

Porous concrete

1. Definition

Eco-porous concrete, also known as drainage concrete, is a new type of environmentally friendly paving material made by mixing fine aggregates, high-grade concrete, water-permeable admixtures, water, colored reinforcing agents, and stabilizers in a certain proportion. It forms a honeycomb structure by binding a thin paste layer around the coarse aggregates, allowing rainwater to infiltrate the ground and effectively replenish groundwater. It also effectively eliminates the environmental hazards caused by oil compounds on the ground. Additionally, its vibrant colors and landscape integration contribute to a more harmonious urban environment, making it an excellent permeable pavement material for protecting nature, maintaining ecological balance, and mitigating 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, the rapid loss of moisture in the permeable concrete will reduce the bonding strength between aggregates. Simply spread the materials evenly on the subgrade.

3. Vibration: Avoid excessive vibration and compaction during the pouring process.

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

5. Maintenance: Due to the numerous pores in permeable concrete, it tends to lose moisture easily and dry rapidly. Therefore, it requires film covering for maintenance.

6. Final Product: Wet curing film for permeable concrete should last at least 7 days, followed by applying a layer of specialized permeable concrete sealer.