Christiane, the co-founder of Sonocrete, leads a working group at the Bauhaus University Weimar focusing on cement chemistry and scanning electron microscope.
So, if you see one of those beautiful shots of C-S-H phases building up after sonication, Christiane is the one who took it.
Besides chemistry of cement and concrete, Christiane also loves coffee (and the letter C, it seems). She worked on coffee farms herself and has close bonds with direct importers.
So, make sure to have a cup of real Ethiopian coffee if you meet her.