Fluids affect the mechanical behavior of geomaterials and a number of experimental
evidences are available to describe their impact over relevant properties such us unconfined
compression strength, brittleness, etc. However, the impact of saturating fluids (either
reactive or not) over fracture toughness has not received much attention so far. In this
contribution we have performed a series of mode-I fracture toughness tests employing the
pseudo-compact tension test (pCT) approach and two types of rock: a porous siliceous …