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Steel slag aluminoferrite cement and preparation method thereof
The invention relates to steel slag iron aluminate cement and a preparation method thereof. The steel slag iron aluminate cement is prepared from the following raw materials in percentage by weight: 40%-75% of iron aluminate cement clinker, 20%-40% of high-alkalinity steel slag, 5%-25% of gypsum, 0.1%-2% of a nano nucleating agent, 0-20% of limestone, 0-20% of slag, 0-20% of fly ash and 0-20% of metakaolin. The high-alkalinity steel slag is used in the low-alkalinity aluminoferrite cement, on one hand, hydration of the steel slag is accelerated through a hydration induction effect, so that the gelling activity of the steel slag is fully exerted, and bad expansion is eliminated; on the other hand, the high alkalinity characteristic of the steel slag is utilized to overcome the defects that the alkalinity of the aluminoferrite hydrated slurry is relatively low and the activity excitation effect on the auxiliary cementing material is relatively weak, so that the activity excitation on the auxiliary cementing material is realized, and various benefits of utilizing solid wastes, reducing carbon emission, increasing durability and the like are realized.
本发明涉及一种钢渣铁铝酸盐水泥及其制备方法，所述钢渣铁铝酸盐水泥包括如下重量百分比的原料：铁铝酸盐水泥熟料40％‑75％，高碱性钢渣20％‑40％，石膏5％‑25％，纳米晶核剂0.1％‑2％，石灰石0‑20％，矿渣0‑20％，粉煤灰0‑20％，偏高岭土0‑20％。本发明将高碱性钢渣用于碱度较低的铁铝酸盐水泥中，一方面通过水化诱导效应加速钢渣水化，从而充分发挥其胶凝活性和消除不良膨胀；另一方面利用钢渣高碱度特性弥补铁铝酸盐水泥水化浆体碱度较低，对辅助胶凝材料活性激发作用较弱的缺点，实现对辅助性胶凝材料活性激发，实现了利用固废、降低碳排放、增加耐久性等多种效益。
Steel slag aluminoferrite cement and preparation method thereof
The invention relates to steel slag iron aluminate cement and a preparation method thereof. The steel slag iron aluminate cement is prepared from the following raw materials in percentage by weight: 40%-75% of iron aluminate cement clinker, 20%-40% of high-alkalinity steel slag, 5%-25% of gypsum, 0.1%-2% of a nano nucleating agent, 0-20% of limestone, 0-20% of slag, 0-20% of fly ash and 0-20% of metakaolin. The high-alkalinity steel slag is used in the low-alkalinity aluminoferrite cement, on one hand, hydration of the steel slag is accelerated through a hydration induction effect, so that the gelling activity of the steel slag is fully exerted, and bad expansion is eliminated; on the other hand, the high alkalinity characteristic of the steel slag is utilized to overcome the defects that the alkalinity of the aluminoferrite hydrated slurry is relatively low and the activity excitation effect on the auxiliary cementing material is relatively weak, so that the activity excitation on the auxiliary cementing material is realized, and various benefits of utilizing solid wastes, reducing carbon emission, increasing durability and the like are realized.
本发明涉及一种钢渣铁铝酸盐水泥及其制备方法，所述钢渣铁铝酸盐水泥包括如下重量百分比的原料：铁铝酸盐水泥熟料40％‑75％，高碱性钢渣20％‑40％，石膏5％‑25％，纳米晶核剂0.1％‑2％，石灰石0‑20％，矿渣0‑20％，粉煤灰0‑20％，偏高岭土0‑20％。本发明将高碱性钢渣用于碱度较低的铁铝酸盐水泥中，一方面通过水化诱导效应加速钢渣水化，从而充分发挥其胶凝活性和消除不良膨胀；另一方面利用钢渣高碱度特性弥补铁铝酸盐水泥水化浆体碱度较低，对辅助胶凝材料活性激发作用较弱的缺点，实现对辅助性胶凝材料活性激发，实现了利用固废、降低碳排放、增加耐久性等多种效益。
Steel slag aluminoferrite cement and preparation method thereof
一种钢渣铁铝酸盐水泥及其制备方法
WANG ZHIYONG (author) / HE CHANGYU (author) / QI DONGYOU (author) / ZHANG YU (author) / CHEN WENJIE (author)
2024-08-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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