Study on the Process and Characteristics of Clogging for Ceramic Permeable Brick

Table 1

The main properties of ceramic permeable brick.

Index	Splitting tensile strength (MPa)		Permeability coefficient (cm/s)	Frost resistance (%)	BNP	Porosity (%)
GB/T25993-2010	Average value ≥ 4.5	Minimum value ≥ 3.4	≥2.0 × 10^−2	Strength loss rate ≤ 20	≥65	≥15
Ceramic brick	5.3	4.7	3.1 × 10^−2	4	89	24.82

BPN, British Pendulum Number.