X-ray computed tomography proof of bacterial-based self ...
The hydrogel sheets were then subjected to freeze grinding (IKA Yellowline A10 Analytical Grinder) and freeze drying (ChristAlpha 2-4 LSC, Germany) to obtain the dry powders. 2.2.2. Mortar specimens. Mortar specimens were made by using cement (CEM I 52.5N), sand (DIN EN 196-1 Norm Sand) and tap water.