Permeable concrete

1. Definition

Eco-porous concrete, also known as drainage concrete, is a new type of environmentally friendly paving material made by mixing and blending small gravel, high-grade concrete, water-permeable admixtures, water, colored reinforcing agents, and stabilizers in a certain proportion. It is formed by a layer of thin paste coating the surface of coarse aggregates, creating a honeycomb structure that allows rainwater to seep into the ground, effectively replenishing groundwater. It also effectively eliminates the environmental hazards caused by oil compounds and other pollutants 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 mixer to achieve a well-mixed material in 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 spread the material 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 its numerous pores, permeable concrete is prone to water loss and dries quickly, thus requiring film covering for maintenance.

6. Product: The film curing time for permeable concrete should be no less than 7 days, followed by applying a layer of specialized permeable concrete sealant.