BioZEment: Low CO2 emission building material employing bacterial metabolism

Business opportunity

The BioZEment process can create a sustainable alternative to conventional concrete. The BioZEment shall have lower embodied energy, using bio-wastes as energy source, and increase the possibilities for material recycling, leading to less resource use, less CO2-emissions, and a construction industry more integrated in a circular economy.

Inven2 seeks industrial development partners and/or licensees for the technology within potential application areas.

Technology description

The BioZEment concept is based on dissolution and re-crystallization of calcium carbonate induced by selected, non-pathogenic bacterial strains. In the first step, bacteria produce organic acids to partially dissolve crushed limestone mixed with a granular media like sand or gravel. Subsequently a biocatalytic increase in the pH is induced, re-precipi­tating CaCO3 to bind grains together, forming a solid, concrete-like construction material. The product development focuses on production time and material properties optimization, bacteria strain performance and robustness engineering, and suitable manufacturing processes development.


Potential to decrease life cycle climate impact by more than 80% in the construction industry that today accounts for more than 5% of global anthropogenic CO2 emissions.


  • WO 2017/220768
  • Phua, Y. J., & Røyne, A., Bio-cementation through controlled dissolution and recrystallization of calcium carbonate. Construction and Building Materials, 167, 657-668. doi:10.1016/j.conbuildmat.2018.02.059
  • Røyne, A. et al., Towards a low CO2 emission building material employing bacterial metabolism (1/2): The bacterial system and prototype production. Plos One, 14(4), e0212990. doi:10.1371/journal.pone.0212990



Elin Melby, Ph.D

Elin Melby, Ph.D

Technology Strategy Manager


+47 95 20 70 71