Porous concrete

Definition

Ecological permeable 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 the coarse aggregates being bonded together with a thin paste, allowing rainwater to infiltrate the ground and effectively replenish groundwater. It also effectively eliminates the environmental pollution caused by oil compounds on the ground. With its vibrant colors and landscape integration, it contributes to a more harmonious urban environment, serving as an excellent permeable pavement material for 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 mixer to create a well-mixed material in the proper proportions.

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 lay the materials flat on the subgrade.

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

4. Compaction: After vibration, further compaction should be achieved using solid steel pipes or light-duty rollers, ensuring flattening and permeability of the concrete mix.

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

6. Product: Wet curing time for the film-coated pervious concrete should not be less than 7 days, followed by applying a special pervious concrete sealer.