The durability of strain-hardening cement-based materials (SHCC) is strongly influenced by the transport of different substances through the material. Since numerous fine cracks are formed in SHCC, the relationship between the crack pattern and different transport properties has been the subject of experimental investigations, including tests of water and gas permeability, chloride ingress, and capillary absorption. It appears to be insufficient to consider only the average or maximum crack width when transport through SHCC is to be modelled. Therefore, the determination of certain crack pattern parameters has been proposed that take into account both crack widths and distances. These parameters may be linked to certain transport properties of the respective material.