Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of solid waste resource utilization, in particular to low-carbon cement as well as preparation and application thereof. The method comprises the following steps: uniformly mixing fluidized bed combustion ash, aluminum oxide, anhydrite, calcium carbonate and silicon dioxide according to a mass ratio of (15-50%): (10-30%): (3-40%): (20-60%): (0-10%), and further pressing the mixture into blocks to obtain test blocks; and calcining the test block at a low temperature to obtain clinker, and finally doping gypsum into the clinker to obtain the low-carbon cement with excellent performance. According to the method, the utilization rate of the industrial solid waste fluidized bed combustion ash can be greatly increased, the energy consumption in the clinker sintering process can be reduced, and the purposes of low emission of CO2 and energy-saving production are achieved. The prepared low-carbon cement is high in hardening speed and high in early strength, and the later strength is stably increased.
本发明涉及固废资源利用技术领域，尤其是涉及一种低碳水泥及其制备与应用。本发明将固硫灰、氧化铝、无水石膏、碳酸钙和二氧化硅之间以质量比15％‑50％：10％‑30％：3％‑40％：20％‑60％：0％‑10％进行混匀，进一步将其压制成块得到试块；然后在较低温度下将试块煅烧得到熟料，最后在熟料内掺石膏得到性能优良的低碳水泥。本发明可大幅度提高工业固废固硫灰的利用率，并且可以减少熟料烧成过程中的能耗，达到CO2低排放、节能生产的目的。本发明制备的低碳水泥硬化速度快，早期强度高且后期强度保持稳定增长。
The invention relates to the technical field of solid waste resource utilization, in particular to low-carbon cement as well as preparation and application thereof. The method comprises the following steps: uniformly mixing fluidized bed combustion ash, aluminum oxide, anhydrite, calcium carbonate and silicon dioxide according to a mass ratio of (15-50%): (10-30%): (3-40%): (20-60%): (0-10%), and further pressing the mixture into blocks to obtain test blocks; and calcining the test block at a low temperature to obtain clinker, and finally doping gypsum into the clinker to obtain the low-carbon cement with excellent performance. According to the method, the utilization rate of the industrial solid waste fluidized bed combustion ash can be greatly increased, the energy consumption in the clinker sintering process can be reduced, and the purposes of low emission of CO2 and energy-saving production are achieved. The prepared low-carbon cement is high in hardening speed and high in early strength, and the later strength is stably increased.
本发明涉及固废资源利用技术领域，尤其是涉及一种低碳水泥及其制备与应用。本发明将固硫灰、氧化铝、无水石膏、碳酸钙和二氧化硅之间以质量比15％‑50％：10％‑30％：3％‑40％：20％‑60％：0％‑10％进行混匀，进一步将其压制成块得到试块；然后在较低温度下将试块煅烧得到熟料，最后在熟料内掺石膏得到性能优良的低碳水泥。本发明可大幅度提高工业固废固硫灰的利用率，并且可以减少熟料烧成过程中的能耗，达到CO2低排放、节能生产的目的。本发明制备的低碳水泥硬化速度快，早期强度高且后期强度保持稳定增长。
Low-carbon cement as well as preparation and application thereof
一种低碳水泥及其制备与应用
11.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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