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Geopolymer grouting material and preparation method thereof
The invention discloses a geopolymer grouting material and a preparation method thereof. The geopolymer grouting material comprises a siliceous raw material, an aluminum raw material, a calcium raw material, an alkaline activator, a composite admixture and an early strength agent, wherein the alkaline activator is a mixture of sodium silicate and sodium metaaluminate, and the composite additive is a mixture of polycarboxylic acid, triethanolamine and an ethylene-vinyl acetate copolymer; during preparation, the siliceous raw material, the aluminum raw material and the calcium raw material are dried, mixed and subjected to ball milling, then the alkaline triggering agent, the composite additive and the early strength agent are added and evenly mixed to form a mixture, and finally the mixture is mixed according to the water-cement ratio to form the geopolymer grouting material. According to the grouting material, based on the addition of the composite alkaline activator and the composite admixture, the formation of the geopolymer grouting material can be promoted in multiple directions, so that the grouting material is excellent in fluidity, high in water retention and high in strength (the breaking strength in 28 days reaches 8MPa or above, and the compressive strength in 28 days reaches 50MPa or above).
本发明公开了一种地聚物注浆材料及其制备方法，包括硅质原料、铝质原料、钙质原料、碱性激发剂、复合外加剂及早强剂；其中，所述碱性激发剂为硅酸钠与偏铝酸钠的混合物，复合外加剂为聚羧酸、三乙醇胺与乙烯‑醋酸乙烯共聚物的混合物；制备时先将硅质原料、铝质原料、钙质原料烘干，混合球磨，再加入碱性触发剂、复合外加剂和早强剂混合均匀形成混合料，最后按照水灰比拌合形成地聚物注浆材料。该注浆材料基于复合碱性激发剂和复合外加剂的加入，能够多方位地促进该地聚物注浆材料的形成，进而使得该注浆材料流动性优、保水性强、强度高(28天抗折强度达到8MPa以上、28天抗压强度达到50MPa以上)。
Geopolymer grouting material and preparation method thereof
The invention discloses a geopolymer grouting material and a preparation method thereof. The geopolymer grouting material comprises a siliceous raw material, an aluminum raw material, a calcium raw material, an alkaline activator, a composite admixture and an early strength agent, wherein the alkaline activator is a mixture of sodium silicate and sodium metaaluminate, and the composite additive is a mixture of polycarboxylic acid, triethanolamine and an ethylene-vinyl acetate copolymer; during preparation, the siliceous raw material, the aluminum raw material and the calcium raw material are dried, mixed and subjected to ball milling, then the alkaline triggering agent, the composite additive and the early strength agent are added and evenly mixed to form a mixture, and finally the mixture is mixed according to the water-cement ratio to form the geopolymer grouting material. According to the grouting material, based on the addition of the composite alkaline activator and the composite admixture, the formation of the geopolymer grouting material can be promoted in multiple directions, so that the grouting material is excellent in fluidity, high in water retention and high in strength (the breaking strength in 28 days reaches 8MPa or above, and the compressive strength in 28 days reaches 50MPa or above).
本发明公开了一种地聚物注浆材料及其制备方法，包括硅质原料、铝质原料、钙质原料、碱性激发剂、复合外加剂及早强剂；其中，所述碱性激发剂为硅酸钠与偏铝酸钠的混合物，复合外加剂为聚羧酸、三乙醇胺与乙烯‑醋酸乙烯共聚物的混合物；制备时先将硅质原料、铝质原料、钙质原料烘干，混合球磨，再加入碱性触发剂、复合外加剂和早强剂混合均匀形成混合料，最后按照水灰比拌合形成地聚物注浆材料。该注浆材料基于复合碱性激发剂和复合外加剂的加入，能够多方位地促进该地聚物注浆材料的形成，进而使得该注浆材料流动性优、保水性强、强度高(28天抗折强度达到8MPa以上、28天抗压强度达到50MPa以上)。
Geopolymer grouting material and preparation method thereof
一种地聚物注浆材料及其制备方法
ZHANG XIAOQIANG (author) / HUANG BAOSHUAI (author) / WEI TANGZHONG (author) / CAI GUANGNAN (author) / LIU FANG (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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