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