Metabolic Activity of Micromycetes Affecting Urban Concrete Constructions

Figure 1

Concrete specimens of different marks (M300, M400, M600, M800, and M1000), untreated, indicating the location of samples before covering by the medium (a) and treated by Aspergillus fumigatus A2 (b) and Penicillium brevicompactum P4 (c) spores after 5 days of fungal growth. The photos were performed after opening the containers, and the covers were removed. The signs on the beams correspond to the tested brands of concrete.

(a)

(b)

(c)