Classification | Permeable concrete | Porous Asphalt | Sintered permeable brick | Porous honeycomb brick | |
Raw material |
| Cement, continuous graded aggregate | Single graded aggregate, asphalt | Inorganic nonmetallic materials | Continuous graded aggregate, cement |
Manufacturing methods |
| Mixing—stirring— compaction | Mixing—stirring— compaction | Shaping—Fired | Mixing—stirring— compaction |
Performance | Compressive strength/MPa | 15 - 30 | 15 - 30 | 25 - 35 | 15.15 - 23.22 |
Flexural Strength/MPa | 3.0 - 5.0 | 3.0 - 5.0 | 4.5 - 6.0 | 8 - 11 | |
Porosity % | 10 - 25 | 10 - 25 | 15 - 20 | 16.2 - 22.6 | |
Permeability coefficient/mm/s | 1.0 - 10.0 | 1.0 - 10.0 | 1.0 - 15.0 | 5.72 - 9.26 | |
Cost and applicability |
| High temperature and humidity resistance, low strength | High strength, low temperature and humidity resistant | High abrasion resistant | High strength, high permeability coefficient and low cost |