Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal gangue-based cementing material and preparation method thereof
The invention belongs to the technical field of industrial solid waste harmless treatment, and particularly relates to a coal gangue-based cementing material and a preparation method thereof. The coal gangue-based cementing material is prepared by calcining coal gangue powder and magnesium hydroxide powder, wherein the content of SiO2 in the coal gangue powder is 30 wt% or above, and the content of Al2O3 in the coal gangue powder is 10 wt% or above; and the coal gangue powder and the magnesium hydroxide powder are mixed according to a magnesium-silicon molar ratio of 0.5-1.7. The main raw material coal gangue utilized by the cementing material is wide in source and low in cost, and the synthesis process is mature, simple, green and environment-friendly, and is suitable for industrial large-scale production.
本发明属于工业固体废弃物无害化处理技术领域，具体涉及一种煤矸石基胶凝材料及其制备方法，所述煤矸石基胶凝材料，由煤矸石粉与氢氧化镁粉末煅烧制备得到，其中所述煤矸石粉中SiO2含量占30wt%以上、A12O3含量占10wt%以上；所述煤矸石粉与氢氧化镁粉末按照镁硅摩尔比为0.5‑1.7的比例混合。本发明的胶凝材料所利用的主要原材料煤矸石来源广泛，成本低廉，且合成工艺成熟简单、绿色环保、适用于工业大规模生产。
Coal gangue-based cementing material and preparation method thereof
The invention belongs to the technical field of industrial solid waste harmless treatment, and particularly relates to a coal gangue-based cementing material and a preparation method thereof. The coal gangue-based cementing material is prepared by calcining coal gangue powder and magnesium hydroxide powder, wherein the content of SiO2 in the coal gangue powder is 30 wt% or above, and the content of Al2O3 in the coal gangue powder is 10 wt% or above; and the coal gangue powder and the magnesium hydroxide powder are mixed according to a magnesium-silicon molar ratio of 0.5-1.7. The main raw material coal gangue utilized by the cementing material is wide in source and low in cost, and the synthesis process is mature, simple, green and environment-friendly, and is suitable for industrial large-scale production.
本发明属于工业固体废弃物无害化处理技术领域，具体涉及一种煤矸石基胶凝材料及其制备方法，所述煤矸石基胶凝材料，由煤矸石粉与氢氧化镁粉末煅烧制备得到，其中所述煤矸石粉中SiO2含量占30wt%以上、A12O3含量占10wt%以上；所述煤矸石粉与氢氧化镁粉末按照镁硅摩尔比为0.5‑1.7的比例混合。本发明的胶凝材料所利用的主要原材料煤矸石来源广泛，成本低廉，且合成工艺成熟简单、绿色环保、适用于工业大规模生产。
Coal gangue-based cementing material and preparation method thereof
一种煤矸石基胶凝材料及其制备方法
ZHANG QING (Autor:in) / PENG SHUCHUAN (Autor:in) / ZHOU CHUNCAI (Autor:in) / LIU GUIJIAN (Autor:in)
10.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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