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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (6): 1897-1911.

Special Issue: 水泥混凝土

• Cement and Concrete •     Next Articles

Review on CO2 Mineral Carbonation-Cured Cement-Based Materials

WU Shengkun1,2, HUANG Tianyong2, XIE Yan1, WANG Zhanpeng1, BAO Qi1, TIONG Michelle1, YE Hang1, LIU Qi1   

  1. 1. National State Key Laboratory of Petroleum Resources and Engineering, Unconventional Petroleum Research Institute, China University of Petroleum (Beijing), Beijing 102249, China;
    2. National Key Laboratory of Solid Waste Recycling and Energy Saving Building Material, Beijing Building Materials Academy of Sciences Research, Beijing 100041, China
  • Received:2023-04-10 Revised:2023-04-10 Online:2023-06-15 Published:2023-06-25

Abstract: CO2 mineralization curing is considered an effective approach to mitigate the impact of the construction industry on global climate change by reacting CO2 with cement-based materials (CBM) (e.g. cement clinker, namely tricalcium silicate, β-dicalcium silicate, tricalcium aluminate and its hydration products, namely calcium hydroxide, amorphous calcium silicate hydrates, hydrated aluminate and sulfate phases) to form calcium carbonate mainly composed of calcite and amorphous silica gel with high degree of polymerization, realizing the storage and utilization of CO2. Attributed to the good stability, filling effect and nucleation effect of the resultant products, the mechanical properties and durability of CBM are effectively improved while better performance is anticipated in a relatively short time compared with other curing technologies. In this paper, the reaction mechanisms and latest research progress of CO2 mineral carbonation-cured CBM are reviewed. The effect of influencing factors, such as pre-condition, relative humidity, water binder ratio, CO2 concentration, curing pressure and temperature on the post-mineralization properties, carbon fixation rate and mineralization degree are evaluated. Finally, based on the current research status and existing problems, suggestions and recommendations for a wider application of CO2 mineralization technology in the future are also provided.

Key words: carbon dioxide storage and utilization, mineral carbonation curing, cement-based material, reaction mechanism, influencing factor

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