The biggest energy user in concrete is typically Portland Cement—the production of which requires immense heat. But Geo-Green Crete contains no Portland cement. So what holds the aggregate together? A “proprietary binding agent.” We’d like to know more about the durability, safety, and source of that agent, but in the meantime it’s a product worth watching. It’s a low energy mix of post-industrial waste and aluminosilicate materials. Just add water. Marc Rutenberg Homes will be using the product on Florida’s west coast to build some net zero energy homes this year.
www.greenworldcrete.com