Surface coating of pyrolized and native wood surfaces with calcium carbonate crystals by biomineralization

In a former project pyrolized surfaces for wooden facades with defined surface depth have been developed. The evaluation of the mechanical performance showed an adhesion of the surface layers worthy of improvement with additional coatings (Gengnagel et al. 2017).

Using biomineralization, it could be shown that the durability of building materials can be improved (Gaylarde et al. 2003) or concrete cracks can be closed. Processes such as microbially induced calcium carbonate precipitation (MICP) are widely known (Vos et al. 2011) and have been developed for concrete and other mineral materials and surfaces (Jonkers 2011).

However, the knowledge about the targeted preparation and production as well as the application of biomineralization on wood and especially on pyrolized wood layers for the bonding of the layers is scarce. Content of a research project was the study of biomineralization with Sporosarcina pasteurii as a biological surface coating of pyrolized wood surfaces.

Keywords: biomineralization, pyrolized wood, surface coating

Authors

Lisa Bansamir
Fabian Wulf
Eberswalde University for Sustainable Development, Eberswalde

Tom Brodhagen
Alexander Pfriem
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