Biosten som kystsikring

Anja Katharina Damgaard Bodé, Helena Larsen, Marc Ivan Løvenskjold, Cecilie Krogshave Bogdahn, Andreas Breaum & Helene Skov Breum

Studenteropgave: Basisprojekt


This report examines the possibilities of using biocementation as an alternative method for coastal protection. Biocementation is a sustainable solution for binding loose aggregate without the use of cement. The use of biocementation in sand results in a product which we refer to as “biostone”. This process uses the enzyme-producing bacteria Sporosarcina pasteurii with a urea-modified nutrition broth and calcium, which combined creates a natural looking stone similar to naturally produced sandstone.
Through the three main experiments key findings include the shaping of the stone, which can be made both within a confined mold and in cylinders placed in loose sand. Also the experiments have proved that there is no significant difference in the results of biocementation in sterile and non-sterile sand, which facilitates the preparation in a natural environment and hypothetically at Danish coastlines.
The report and experiments rely on methods of technological analysis and methods from the natural sciences, and a design rationale has been developed based on our findings and works as a proof of concept.

UddannelserBasis - Humanistisk-Teknologisk Bacheloruddannelse, (Bachelor uddannelse) Basis
Udgivelsesdato27 maj 2019
Antal sider61
VejledereInger Louise Berling Hyams & Tina-Henriette Kristiansen


  • Biostone
  • Biosten
  • Kystsikring
  • Biocementering
  • Sandsten
  • biologi
  • kemi
  • biokemi
  • bioteknologi
  • MICP