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Acidic composite activated cementing material prepared from coal gasification slag/fly ash
The invention provides an acidic composite activated cementing material prepared from coal gasification slag/fly ash, which is prepared by the following steps: mixing coal gasification slag/fly ash of which the carbon content is less than 3% with 0.5-1% by weight of active lime, and carrying out superfine grinding until the content of fine powder of which the particle size is greater than or equal to 45 microns is less than 50% and does not exceed 80 microns; the mixed modified material is used for preparing concrete under the action of 0.1-5% by weight of an acidic composite activator, the mixed modified material can replace cement and lime to be used as a cementing material, and the compressive strength of the concrete in 7 days and 28 days reaches up to 27 MPa and 115 MPa.
本发明提供煤气化渣/粉煤灰制酸性复合激活胶凝材料,将含碳量低于3％的煤气化渣/粉煤灰与重量0.5％‑1％活性石灰混合，超细粉碎到≥45μm的细粉小于50％且不超过80微米；混合改性料在在重量0.1％‑5％酸性复合激活剂作用下配制混凝土，可代替水泥和石灰用作胶凝材料，混凝土7天和28天抗压强度高达27MPa和115MPa。
Acidic composite activated cementing material prepared from coal gasification slag/fly ash
The invention provides an acidic composite activated cementing material prepared from coal gasification slag/fly ash, which is prepared by the following steps: mixing coal gasification slag/fly ash of which the carbon content is less than 3% with 0.5-1% by weight of active lime, and carrying out superfine grinding until the content of fine powder of which the particle size is greater than or equal to 45 microns is less than 50% and does not exceed 80 microns; the mixed modified material is used for preparing concrete under the action of 0.1-5% by weight of an acidic composite activator, the mixed modified material can replace cement and lime to be used as a cementing material, and the compressive strength of the concrete in 7 days and 28 days reaches up to 27 MPa and 115 MPa.
本发明提供煤气化渣/粉煤灰制酸性复合激活胶凝材料,将含碳量低于3％的煤气化渣/粉煤灰与重量0.5％‑1％活性石灰混合，超细粉碎到≥45μm的细粉小于50％且不超过80微米；混合改性料在在重量0.1％‑5％酸性复合激活剂作用下配制混凝土，可代替水泥和石灰用作胶凝材料，混凝土7天和28天抗压强度高达27MPa和115MPa。
Acidic composite activated cementing material prepared from coal gasification slag/fly ash
煤气化渣/粉煤灰制酸性复合激活胶凝材料
TIAN YUANYU (author) / QIAO YINGYUN (author) / ZHANG YANPENG (author) / CUI RUOTONG (author) / TIAN YILIANG (author) / YE ZHIGANG (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2021
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