Building material from waste: Advanced gypsum to replace natural gypsum
An international team of scientists has presented an eco-friendly and economically viable technology for recycling waste lime and sulfuric acid into a high-quality construction material. This substance can be used to create a stronger and moisture-resistant cement that also sets faster. The new method is characterized by simplicity, significantly lower material costs compared to traditional technologies, and greater energy efficiency. It requires only 40°C instead of the usual 700-900°C.