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Circulating fluidized bed fly ash-based solid waste concrete as well as application and application method thereof
The invention discloses circulating fluidized bed fly ash-based solid waste concrete as well as application and an application method thereof, and belongs to the technical field of solid waste resource utilization and CO2 mineralization fixation emission reduction. The concrete product with excellent mechanical properties is obtained by changing the proportion of the circulating fluidized bed fly ash and the desulfurized gypsum in the concrete and performing carbonization curing; according to the present invention, the carbonization curing manner is adopted to convert ettringite and other hydration products in the slurry into stable calcium carbonate, such that the concrete strength is improved, the problems of reduction of the volume stability, the mechanical property and the like caused by the solid waste doping are eliminated, and the concrete product with characteristics of environmental saving, low price and stable quality is obtained. According to the method, industrial waste residues are used as raw materials, the preparation method is simple and convenient, the pile body bearing capacity is sufficient, and the dual effects of improving the industrial waste residue utilization rate and carbon emission reduction are achieved.
本发明公开了一种循环流化床粉煤灰基固废混凝土及其应用和应用方法，属于固体废弃物资源化利用和CO2矿化固定减排技术领域。本发明通过改变循环流化床粉煤灰和脱硫石膏在混凝土中的比例，并以碳化养护的方式获得力学性能优良的混凝土制品；采用碳化养护的方式将浆体中钙矾石等水化产物转化为稳定的碳酸钙，提高混凝土强度，消除由于固废掺入导致的体积安定性、力学性能等下降的问题，并获得环境节约、价格低廉、质量稳定的混凝土制品。该方法原材料为工业废渣，制备方法简便，桩体承载力充足，有助于实现提高工业废渣利用率和碳减排的双重效果。
Circulating fluidized bed fly ash-based solid waste concrete as well as application and application method thereof
The invention discloses circulating fluidized bed fly ash-based solid waste concrete as well as application and an application method thereof, and belongs to the technical field of solid waste resource utilization and CO2 mineralization fixation emission reduction. The concrete product with excellent mechanical properties is obtained by changing the proportion of the circulating fluidized bed fly ash and the desulfurized gypsum in the concrete and performing carbonization curing; according to the present invention, the carbonization curing manner is adopted to convert ettringite and other hydration products in the slurry into stable calcium carbonate, such that the concrete strength is improved, the problems of reduction of the volume stability, the mechanical property and the like caused by the solid waste doping are eliminated, and the concrete product with characteristics of environmental saving, low price and stable quality is obtained. According to the method, industrial waste residues are used as raw materials, the preparation method is simple and convenient, the pile body bearing capacity is sufficient, and the dual effects of improving the industrial waste residue utilization rate and carbon emission reduction are achieved.
本发明公开了一种循环流化床粉煤灰基固废混凝土及其应用和应用方法，属于固体废弃物资源化利用和CO2矿化固定减排技术领域。本发明通过改变循环流化床粉煤灰和脱硫石膏在混凝土中的比例，并以碳化养护的方式获得力学性能优良的混凝土制品；采用碳化养护的方式将浆体中钙矾石等水化产物转化为稳定的碳酸钙，提高混凝土强度，消除由于固废掺入导致的体积安定性、力学性能等下降的问题，并获得环境节约、价格低廉、质量稳定的混凝土制品。该方法原材料为工业废渣，制备方法简便，桩体承载力充足，有助于实现提高工业废渣利用率和碳减排的双重效果。
Circulating fluidized bed fly ash-based solid waste concrete as well as application and application method thereof
一种循环流化床粉煤灰基固废混凝土及其应用和应用方法
WANG XIAORONG (author) / LIU YANG (author) / LI CHI (author) / WU HUIMIN (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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