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Application of silica fume as water reducing agent, corresponding alkali-activated cementing material and preparation method of alkali-activated cementing material
The invention discloses application of silica fume as a water reducing agent, the water reducing agent is used for a coal ash-based low-calcium system alkali-activated cementing material and/or a slag-based high-calcium system alkali-activated cementing material, and discloses the coal ash-based low-calcium system alkali-activated cementing material, the slag-based high-calcium system alkali-activated cementing material and corresponding preparation methods. By doping silica fume as a water reducer, the expansion degree and compressive strength of the slag-based high-calcium system alkali-activated cementing material are obviously improved, the expansion degree reaches 236 mm and is improved by 30%, the compressive strength in 28 days can reach 104.6 MPa and is improved by 2%, the expansion degree and compressive strength of the fly ash-based low-calcium system alkali-activated cementing material are obviously improved, the expansion degree can reach 222.5 mm, and the compressive strength in 28 days can reach 104.6 MPa and is improved by 2%. The compressive strength can reach 58MPa, and the compressive strength is improved by 11.7%.
本发明公开了一种硅灰（Silica fume）作为减水剂的用途，所述减水剂用于粉煤灰基低钙体系碱激发胶凝材料和或矿渣基高钙体系碱激发胶凝材料，以及公开了粉煤灰基低钙体系碱激发胶凝材料、矿渣基高钙体系碱激发胶凝材料和相应的制备方法，硅灰作为减水剂的掺入使得矿渣基高钙体系碱激发胶凝材料的扩展度、抗压强度得到明显提升，其中扩展度达236mm，提升30%，以及28天抗压强度可达104.6MPa，提升了2%，使得粉煤灰基低钙体系碱激发胶凝材料的扩展度、抗压强度得到明显提升，其中扩展度可达222.5mm，提升40.8%，以及抗压强度可达58MPa，提升了11.7%。
Application of silica fume as water reducing agent, corresponding alkali-activated cementing material and preparation method of alkali-activated cementing material
The invention discloses application of silica fume as a water reducing agent, the water reducing agent is used for a coal ash-based low-calcium system alkali-activated cementing material and/or a slag-based high-calcium system alkali-activated cementing material, and discloses the coal ash-based low-calcium system alkali-activated cementing material, the slag-based high-calcium system alkali-activated cementing material and corresponding preparation methods. By doping silica fume as a water reducer, the expansion degree and compressive strength of the slag-based high-calcium system alkali-activated cementing material are obviously improved, the expansion degree reaches 236 mm and is improved by 30%, the compressive strength in 28 days can reach 104.6 MPa and is improved by 2%, the expansion degree and compressive strength of the fly ash-based low-calcium system alkali-activated cementing material are obviously improved, the expansion degree can reach 222.5 mm, and the compressive strength in 28 days can reach 104.6 MPa and is improved by 2%. The compressive strength can reach 58MPa, and the compressive strength is improved by 11.7%.
本发明公开了一种硅灰（Silica fume）作为减水剂的用途，所述减水剂用于粉煤灰基低钙体系碱激发胶凝材料和或矿渣基高钙体系碱激发胶凝材料，以及公开了粉煤灰基低钙体系碱激发胶凝材料、矿渣基高钙体系碱激发胶凝材料和相应的制备方法，硅灰作为减水剂的掺入使得矿渣基高钙体系碱激发胶凝材料的扩展度、抗压强度得到明显提升，其中扩展度达236mm，提升30%，以及28天抗压强度可达104.6MPa，提升了2%，使得粉煤灰基低钙体系碱激发胶凝材料的扩展度、抗压强度得到明显提升，其中扩展度可达222.5mm，提升40.8%，以及抗压强度可达58MPa，提升了11.7%。
Application of silica fume as water reducing agent, corresponding alkali-activated cementing material and preparation method of alkali-activated cementing material
硅灰作为减水剂的用途及相应的碱激发胶凝材料及制备方法
ZHU WEIPING (author) / WU XIANPENG (author)
2024-12-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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