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Steel slag and blast furnace water slag composite powder as well as preparation method and application thereof
The invention discloses steel slag and blast furnace water granulated slag composite powder and a preparation method and application thereof. The steel slag and blast furnace water granulated slag composite powder is prepared from 38-44% of steel slag, 51-57% of blast furnace water granulated slag micro powder, 1-3% of calcium oxide, 0.05-0.07% of tetrahydroxyethyl ethylenediamine, 0.2-0.7% of sodium hydroxide, 1.3-1.8% of water glass, 0.01% of hydroxypropyl methyl cellulose and 0.02-0.04% of tetrahydroxypropyl ethylenediamine, wherein the sum is 100%, and the percentages are mass percentages.Hydroxypropyl methyl cellulose is used, so that the hydrophobicity and cohesive force of the copper tailings can be improved, and the compaction characteristic and the structural stability of the doped copper tailing mixture are further improved. Mixed alkali of sodium silicate and sodium hydroxide is added, so that hydration reaction between the alkali-activated steel slag and the part, which isdifficult to hydrate, of the blast furnace water slag can be enhanced to generate a CSH structure, and the strength, durability and other pavement properties of the admixture are improved. Alcohol amine is added, so the early strength and the later strength of the admixture can be improved, and the admixture can be easily ground before use to excite the activity.
本发明公开了一种钢渣和高炉水渣复合粉及其制备方法和应用，由以下原料制备得到：钢渣38～44%，高炉水渣微粉51~57%，氧化钙1～3%，四羟乙基乙二胺0.05~0.07%，氢氧化钠0.2~0.7%，水玻璃1.3~1.8%，羟丙基甲基纤维素0.01%，四羟丙基乙二胺0.02~0.04%，总量100%；所述百分比均为质量百分比。使用了羟丙基甲基纤维素可以改善铜尾渣的憎水性和粘聚力，进而改善掺杂铜尾渣混合物的压实特性以及结构的稳定性。加入水玻璃和氢氧化钠的混合碱可以增强碱性激发钢渣和高炉水渣难以水化的部分进行水化反应生成C‑S‑H结构，提高掺合料的强度和耐久性等路用性能。加入醇胺既可以提高掺合料的早期强度和后期强度，还可以使掺合料使用前易磨激发活性。
Steel slag and blast furnace water slag composite powder as well as preparation method and application thereof
The invention discloses steel slag and blast furnace water granulated slag composite powder and a preparation method and application thereof. The steel slag and blast furnace water granulated slag composite powder is prepared from 38-44% of steel slag, 51-57% of blast furnace water granulated slag micro powder, 1-3% of calcium oxide, 0.05-0.07% of tetrahydroxyethyl ethylenediamine, 0.2-0.7% of sodium hydroxide, 1.3-1.8% of water glass, 0.01% of hydroxypropyl methyl cellulose and 0.02-0.04% of tetrahydroxypropyl ethylenediamine, wherein the sum is 100%, and the percentages are mass percentages.Hydroxypropyl methyl cellulose is used, so that the hydrophobicity and cohesive force of the copper tailings can be improved, and the compaction characteristic and the structural stability of the doped copper tailing mixture are further improved. Mixed alkali of sodium silicate and sodium hydroxide is added, so that hydration reaction between the alkali-activated steel slag and the part, which isdifficult to hydrate, of the blast furnace water slag can be enhanced to generate a CSH structure, and the strength, durability and other pavement properties of the admixture are improved. Alcohol amine is added, so the early strength and the later strength of the admixture can be improved, and the admixture can be easily ground before use to excite the activity.
本发明公开了一种钢渣和高炉水渣复合粉及其制备方法和应用，由以下原料制备得到：钢渣38～44%，高炉水渣微粉51~57%，氧化钙1～3%，四羟乙基乙二胺0.05~0.07%，氢氧化钠0.2~0.7%，水玻璃1.3~1.8%，羟丙基甲基纤维素0.01%，四羟丙基乙二胺0.02~0.04%，总量100%；所述百分比均为质量百分比。使用了羟丙基甲基纤维素可以改善铜尾渣的憎水性和粘聚力，进而改善掺杂铜尾渣混合物的压实特性以及结构的稳定性。加入水玻璃和氢氧化钠的混合碱可以增强碱性激发钢渣和高炉水渣难以水化的部分进行水化反应生成C‑S‑H结构，提高掺合料的强度和耐久性等路用性能。加入醇胺既可以提高掺合料的早期强度和后期强度，还可以使掺合料使用前易磨激发活性。
Steel slag and blast furnace water slag composite powder as well as preparation method and application thereof
一种钢渣和高炉水渣复合粉及其制备方法和应用
LI XIAOJING (author) / SUN BO (author) / XIE HAO (author) / LIU GUOHUA (author)
2021-03-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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