Kißling, PatrickPatrickKißlingLübkemann, FranziskaFranziskaLübkemannMundstock, AlexanderAlexanderMundstockLohaus, LudgerLudgerLohausHaist, MichaelMichaelHaistCaro, JürgenJürgenCaroBigall, Nadja C.Nadja C.Bigall2024-02-202024-02-202022-09Cement and Concrete Research 159: (2022-09)https://hdl.handle.net/11420/45855In order to understand the rheological properties of cementitious suspensions at early stages, among other phases, the formation of ettringite and its time-dependent influence, whether by amount or morphology, has to be examined in detail using a suitable method to stop the hydration process. It is state-of-the-art to exchange water with isopropanol, however, the water initially remains in the system possibly leading to reduced time resolution. Our group raised the question if freeze-drying or the combination of the water-isopropanol exchange with subsequent freeze-drying might be a suitable technique to achieve an almost complete hydration stop at any time. Recently, it was shown under which circumstances low-pressure characterization techniques can be employed without destroying the samples due to loss of crystal bound water. Here, by implementing these recent results, we show under which circumstances freeze-drying indeed can be employed as fast hydration stop method.en0008-88462022Elsevier BVHydration stopTime-variant analysisCementitious suspensionFreeze-dryingChemistryJournal Article10.1016/j.cemconres.2022.106841Journal Article