Carbon-fixing solid brick is a new building material developed by Qingchu Zerocarbon Company using CCUS technology. It uses industrial by-products fly ash and blast furnace slag powder instead of cement, and adopts mineralized maintenance process instead of traditional high-temperature steam maintenance process, effectively reducing carbon dioxide emissions. At the same time, through customized gas injection equipment and special mineralization additives, this product can absorb and fix carbon dioxide during the production process, realizing the carbon fixation function of building materials. This product has been used in multiple commercial projects, helping the construction industry achieve low-carbon development.