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A platform for research: civil engineering, architecture and urbanism
Preparation method of high-activity steel slag admixture
The invention discloses a preparation method of a high-activity steel slag admixture, which comprises the following steps: carrying out ball milling on steel slag micro powder, adding an acidic activator solution in a spray form in the ball milling process, adding an alcohol amine compound and an inorganic alkali compound after the specific surface area is greater than or equal to 900m < 2 >/kg, and continuously carrying out ball milling for a period of time, thereby obtaining the high-activity steel slag admixture. The preparation method is simple, the prepared high-activity steel slag admixture does not need to be doped with volcanic ash minerals to improve the activity and can directly replace part of cement to prepare concrete, the doping amount is large, the prepared concrete is high in strength, the mechanical property of the concrete is improved, and the cost of the concrete is reduced.
本发明公开了一种高活性钢渣掺合料的制备方法，包括以下步骤：将钢渣微粉进行球磨，并在球磨的过程中以喷雾的形式加入酸性激发剂溶液，待球磨至比表面积≥900m2/kg后，再加入醇胺类化合物和无机碱类化合物，继续球磨一段时间，即得。本发明制备方法简单，制得的高活性钢渣掺合料无需掺入火山灰类矿物来提高活性，能够直接取代部分水泥制备混凝土，且掺量大，制得的混凝土强度高，有利于提高混凝土的力学性能，降低混凝土的成本。
Preparation method of high-activity steel slag admixture
The invention discloses a preparation method of a high-activity steel slag admixture, which comprises the following steps: carrying out ball milling on steel slag micro powder, adding an acidic activator solution in a spray form in the ball milling process, adding an alcohol amine compound and an inorganic alkali compound after the specific surface area is greater than or equal to 900m < 2 >/kg, and continuously carrying out ball milling for a period of time, thereby obtaining the high-activity steel slag admixture. The preparation method is simple, the prepared high-activity steel slag admixture does not need to be doped with volcanic ash minerals to improve the activity and can directly replace part of cement to prepare concrete, the doping amount is large, the prepared concrete is high in strength, the mechanical property of the concrete is improved, and the cost of the concrete is reduced.
本发明公开了一种高活性钢渣掺合料的制备方法，包括以下步骤：将钢渣微粉进行球磨，并在球磨的过程中以喷雾的形式加入酸性激发剂溶液，待球磨至比表面积≥900m2/kg后，再加入醇胺类化合物和无机碱类化合物，继续球磨一段时间，即得。本发明制备方法简单，制得的高活性钢渣掺合料无需掺入火山灰类矿物来提高活性，能够直接取代部分水泥制备混凝土，且掺量大，制得的混凝土强度高，有利于提高混凝土的力学性能，降低混凝土的成本。
Preparation method of high-activity steel slag admixture
一种高活性钢渣掺合料的制备方法
FAN DONGDONG (author) / WANG ZHIYONG (author) / HUANG HAI (author) / CHEN YITAO (author) / PENG JIANWEI (author) / TANG JIE (author) / WU CHENGHAO (author) / WEN JIANFENG (author) / YAO JIANAN (author) / ZHU ZONGJIAN (author)
2023-09-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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