The structure of associated liquids is proposed to be described in terms of the fractal conception developed for
amorphous media. The low-frequency region of Raman scattering spectrum for such liquids is shown to reflect fractal
features of these media. Binary H-bonded solutions are taken to gain controlled modifications of the fractal parameters
and at the same time to avoid dealing with a number of unknown variables. In particular the glycerol-water fractal
parameter at certain concentration reflects the competition between different H-bond networks. This concentration
corresponds to the density anomaly 40% concentration.