Tubular porous silicate cement compact with hierarchical porosity were fabricated via a TBA-based freeze-casting.
Highly ordered and unidirectional prismatic pore structures were observed.
Tubular porous silicate cement compact showed both considerable flux rate and desirable selectivity.
Curing process is a non-cost and environmental-friendly method for porous cementitious material.
The method can be employed to prepare many other cement-based porous materials.