Poop Concrete 42% Stronger
Scientists led by Raghuvesh Tiwari discover human waste biochar makes concrete more durable, using 400g of daily poop per person.

Scientists have made a groundbreaking discovery that could revolutionize the construction industry: concrete made with biochar from human poop is 42% stronger than traditional concrete. This innovative approach, developed by researchers led by Raghuvesh Tiwari of Manipal University Jaipur in India, offers a potential solution to reduce carbon dioxide emissions from cement production, one of the world's largest sources of greenhouse gas emissions.
The production of cement, a key ingredient in concrete, is a significant contributor to carbon emissions due to the energy-intensive process of heating and processing limestone. However, by using biochar made from human poop slurry processed at fecal sludge treatment plants, researchers have found a way to create a more sustainable and durable alternative.
The biochar is made through pyrolysis, a process that involves heating organic matter in an oxygen-poor environment. This results in a carbon-rich material that can be used as a substitute for traditional cement. The study, which was accepted for publication in Scientific Reports, found that concrete made with this biochar yields significant improvements in concrete properties.
Concrete is a fundamental material in almost every construction project worldwide, and its production has a significant environmental impact. Humans produce approximately 400 grams of poop per person per day, which can be converted into biochar and used to make this new type of concrete.
## Why it matters The discovery of this new type of concrete has significant implications for the construction industry and the environment. With the world's population projected to continue growing, the demand for concrete is likely to increase, leading to higher carbon emissions from cement production. However, by using biochar from human poop, researchers may have found a way to reduce the environmental impact of concrete production while creating a stronger and more durable material.
The use of biochar as a cement substitute is a promising area of research, and this study demonstrates the potential of this approach. As the world continues to urbanize and the demand for construction materials grows, innovative solutions like this will be crucial in reducing the environmental impact of the construction industry.





