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Nature-based Solutions for Unpaved Road Engineering in Brazil
Implementing Partner: Build Change
Project Name: Nature-based Solutions for Unpaved Road Engineering in Brazil
This project explored microbial induced calcium carbonate precipitation (MICP) to enhance soil stabilization and CO2 capture, improving unpaved roads for disaster resilient infrastructure.
Utilizing native microorganisms, the study examined bio-stimulation treatments that trigger CaCO3 precipitation, strengthening soil and minimizing erosion. These eco-friendly techniques reinforce roadbeds, boost durability, and reduce environmental impact, offering sustainable infrastructure solutions for vulnerable regions while advancing climate-conscious engineering approaches.
railways due to
disasters
network in Brazil
Impact and Key Findings
1
Small field tests assessed soil density, air gaps, and moisture. Results showed that treated soil was denser, had fewer gaps, and retained less moisture than untreated soil, demonstrating enhanced quality, stability, and strength for improved resilience.
2
Despite challenges like uneven bioprecipitation and limited time, the bio-stimulation treatment significantly improved soil strength, cohesion, and erosion resistance. These findings highlight its potential as a valuable, eco-friendly solution for enhancing construction stability and long-term soil reinforcement.
3
The project highlights the importance of ongoing field monitoring to collect long-term data, refining insights into treatment effectiveness. This continuous evaluation enhances soil stabilization strategies, ensuring safer, more durable infrastructure and sustainable land management in vulnerable areas.
