Transforming Waste Into Superior Construction Materials
Pioneering sustainable innovation through our patented MSWagg® technology—delivering performance, savings, and environmental impact.
Louis Structures is a pioneering Wisconsin-based company revolutionizing the construction aggregate industry through innovative waste-to-resource technology. Founded in 2017, we’ve developed a patented process that converts municipal solid waste into MSWagg®, a lightweight aggregate that outperforms traditional construction materials while advancing environmental sustainability.
Watch the Process
Is It Possible to Convert Garbage to Gravel?
Yes. Our full-scale line was demonstrated in Oostburg, WI in 2025 and 2026. Watch it turn waste into MSWagg® lightweight aggregate.
Why MSWagg®?
MSWagg® Technology
MSWagg® is a patented lightweight aggregate engineered from municipal solid waste. An accredited laboratory tested it using EPA methods, and every regulated constituent measured below the federal toxicity limits (TCLP, 40 CFR 261.24), most at non-detectable levels.
Performance Highlights
- Weight
- 60%Lighter
- Strength
- 800–1,000PSI
- Concrete Saving
- 25%less concrete in a basement wall
- CO₂ Reduction
- 1.2–1.8tons CO₂e avoided per ton diverted (modeled)
Join the Future of Sustainable Construction
Be part of the transformation—partner with us to build smarter, cleaner, and more cost-efficient projects.
Request Partnership Info