Metakaolin-based geopolymer cementing material and preparation method thereof: Fid-Bau Portal

Metakaolin-based geopolymer cementing material and preparation method thereof

GUO HAOZHE / YUAN PENG / HUANG ZHIHAO

The invention relates to the technical field of mineral processing, particularly discloses a metakaolin-based geopolymer cementing material and also discloses a preparation method of the metakaolin-based geopolymer cementing material. The metakaolin-based geopolymer cementing material provided by the invention is prepared from diatomite, metakaolin, sodium hydroxide and water. According to the metakaolin-based geopolymer cementing material provided by the invention, the diatomite is directly used for preparing the geopolymer cementing material, and the volcanic ash reaction activity of the diatomite is fully utilized. During preparation, the diatomite is firstly mixed with sodium hydroxide and water for pretreatment, so that the active silicon component in the diatomite is activated, and the molar ratio of SiO2/Al2O3 in the raw materials is increased, thereby enhancing the compressive strength of the metakaolin-based geopolymer cementing material.

本发明涉及矿物加工技术领域，具体公开了一种偏高岭土基地聚物胶凝材料，同时还公开了其制备方法。本发明提供的偏高岭土基地聚物胶凝材料由硅藻土、偏高岭土、氢氧化钠和水制成。本发明提供的偏高岭土基地聚物胶凝材料，将硅藻土直接用于地聚物胶凝材料的制备，充分利用了硅藻土的火山灰反应活性。制备时，通过硅藻土先与氢氧化钠和水混合预处理，激活了硅藻土中的活性硅成分，提高了原料中SiO2/Al2O3的摩尔比，从而提升了偏高岭土基地聚物胶凝材料的抗压强度。

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