Dilatometer for measuring shrinkage or expansion of a sample, system comprising the dilatometer and a sample, and a smple for use in the dilatometer

Dilatometer for measuring shrinkage or expansion of a sample and system, comprising the dilatometer and the sample, wherein the dilatometer is provided with a first and second member which, in combination, define a chamber for the sample, wherein the dilatometer is arranged to apply a relative movement of the first and second member with respect to each other for shearing the sample, and wherein the chamber is provided with a structure for, in use, mechanically engaging the sample for substantially preventing a relative movement of the first member with respect to a first-member-facing-part of the sample and a relative movement of the second member with respect to a second-member-facing-part of the sample, in a direction substantially parallel to the relative movement of the first and second member.