CO2 Emission Evaluation for Phosphogypsum Building Materials
HU Liangcan1, LI Xiaoqin1,*, LIU Yuhang1, CHEN Jianfei2
1 Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650000, China 2 Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
Abstract: The energy consumption and CO2 footprints of phosphogypsum building materials at different production stages during the P&C process of building structures were investigated. Then a carbon footprint calculation model for phosphorus calcined gypsum powder was proposed. The carbon emission factors for phosphorus calcined gypsum powders produced by different processing methods were determined. A carbon footprint model for phosphogypsum-mixed cement concrete was further developed and the carbon emission factors were calculated for phosphogypsum building materials such as hollowed phosphogypsum blocks and phosphogypsum-mixed cement concrete. The CO2 emissions of typical structures and alternative designs with cement-based materials partially replaced by green phosphogypsum materials were calculated. The results showed that up to 26% carbon emission reduction could be achieved by replacing the cement based concrete with phosphogypsum materials such as phosphogypsum blocks. It was also shown that the CO2 emission of phosphorus calcined gypsum powder was strongly affected by the processing method.
胡良灿, 李晓琴, 刘宇航, 陈建飞. 磷石膏建筑材料CO2排放评价[J]. 材料导报, 2025, 39(16): 24050133-6.
HU Liangcan, LI Xiaoqin, LIU Yuhang, CHEN Jianfei. CO2 Emission Evaluation for Phosphogypsum Building Materials. Materials Reports, 2025, 39(16): 24050133-6.
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2025, Vol. 39 
