Following three years of rigorous research, field evaluations, and cross-border cooperation, BIGALPS, short for Bio Inspired Geotechnical Applications to Launch Pan-European Solutions, is nearing the completion of its EU-funded initiative. Led by the Technical University of Cluj-Napoca alongside key international partners EPFL (Ecole Polytechnique Federale de Lausanne, Switzerland) and INRAE (National Research Institute for Agriculture, Food and Environment, France), the consortium set out to transition a pioneering bio-cementation method into practical engineering workflows.
By harnessing natural microbial activity to generate calcium carbonate, the process binds soil particles together, offering an eco-friendly substitute for traditional soil stabilization methods. Proven through pilot trials targeting erosion, slope instability, and foundation enhancement, the project is now poised for its next major milestone: commercial market entry.
We sat down with Dr. Iulia Prodan, Principal Investigator for BIGALPS and lecturer at the Technical University of Cluj-Napoca, to review the project’s milestones, key takeaways, and future trajectory.
As BIGALPS concludes its three-year run, what stands out as the project’s defining accomplishment?
Dr. Iulia Prodan: Without a doubt, our primary breakthrough has been taking bio-cementation out of controlled lab settings and proving its viability under real-world engineering conditions in real site environments.
When we launched BIGALPS, the goal went far beyond re-confirming the fundamental science. We already had a solid academic foundation courtesy of prior work carried out at EPFL during many years of research on biocementation. Our real mission was discovering how the technology performs when subjected to genuine ground conditions, field constraints, regulatory engineering standards, and the operational demands that any solution must satisfy before expecting any commercial adoption.
Over the course of the project, we targeted three distinct applications, mitigating erosion, stabilizing landslides, and strengthening foundation soils, via field pilots across Romania and France. Testing under diverse conditions gave us a comprehensive view of how to tailor the process to varying geotechnical problems.
Ultimately, BIGALPS served as a bridge linking academic discovery to field-level execution. As this chapter closes, we leave with far more than scientific insights; we have gained the technical expertise, site experience, and commercial clarity required to launch this innovation into the market. We conclude the project with a consolidated network of stakeholders committed to future collaboration, including opportunities for co-development to further mature biocementation towards higher TRLs and market deployment.
How does bio-cementation differ from conventional soil stabilization techniques, and why is an alternative necessary right now?
Dr. Iulia Prodan: The core process is directly modelled on nature. By utilizing the natural metabolic functions of specific microorganisms, we induce the formation of calcium carbonate, which acts as a natural binder between earth particles. Essentially, we leverage biology to enhance the structural strength of soil.
This contrasts sharply with traditional ground improvement techniques, which typically rely on heavy volumes of carbon-intensive cement or energy-demanding mechanical procedures.
The demand for sustainable solutions is growing rapidly. Simultaneously, geotechnical demands are intensifying: severe weather patterns, heightened erosion risks, landslides, deteriorating legacy infrastructure, and fast-paced urban expansion are all placing unprecedented strain on land and built assets.
This creates a unique convergence: the industry requires high-performing engineering techniques that also minimize environmental harm. Bio-cementation offers a compelling alternative for engineers seeking a lower-impact way to improve ground parameters.
We don’t view this as a universal replacement for standard construction methods, engineering is far too nuanced for a one-size-fits-all tool. Instead, we see it as a specialized option that provides great value in scenarios where sustainability, minimal site disruption, and environmental protection are top priorities.
BIGALPS was built with commercial viability in mind. How close is this technology to full commercial rollout?
Dr. Iulia Prodan: That focus is precisely what sets BIGALPS apart. As a Horizon EIC Transition Project, its mandatory mandate was two-fold: mature the technology for operational deployment, and craft a commercial model suited to real-world market dynamics. Commercial readiness was built into our roadmap from day one.
Parallel to refining the technology, we developed commercial frameworks, scaling plans, application protocols and a clear path toward market integration. Even the field pilots were designed to reflect real environment situations, from initial design methodologies to on-site execution and quality assurance.
Because of this, our focus has shifted. We no longer need to ask, “Can bio-cementation be applied in the field in real conditions?” Instead, we are answering, “How do we scale it efficiently and make it acceptable and accessible in the future for large-scale commercial projects?”
Naturally, market penetration is a step-by-step process requiring further field demonstrations, strategic industry partnerships, capital investment, regulatory alignment, and ongoing optimization. However, BIGALPS has laid a firm foundation for this transition.
Industry collaboration will be crucial moving forward. What types of commercial partners are you seeking?
Dr. Iulia Prodan: Private sector engagement is vital. Academic institutions alone cannot drive commercial technology adoption.
Up to now, the initiative allowed us to blend scientific expertise with initial input and feedback from industry actors around pilot tests and market requirements. Moving forward, we want to deepen those connections and collaborate directly with stakeholders that believe in us elevating this technology to higher maturity levels on active job sites. This bridge between academic research and commercial industry is what converts potential into market reality.
Looking ahead three to five years, what outcome would define success for BIGALPS and its underlying technology?
Dr. Iulia Prodan: We want to be able to say that we successfully translated European academic research into a practical tool used on active jobsites.
We would like to see bio-cementation deployed across major infrastructure projects throughout Europe, backed by strong partnerships with industry leaders who can see this technology a choice in their engineering toolkit. We also want the technology to keep evolving. While BIGALPS focused on three primary use cases, the full potential of bio-cementation is much broader. Every new deployment, soil variation, and industry partnership will yield valuable data that helps us refine the process further.
We began with a biological concept inspired by nature, proved in controlled conditions and we developed it for real environments. Now we need to move further to the next steps until it reaches its full maturity and the large market. That’s where the next chapter begins.
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