Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing cement and concrete expansive agent from aluminum ash
The invention discloses a method for preparing a cement and concrete expansive agent from aluminum ash, and belongs to the technical field of expansive agent production. The method comprises the following steps: (1) weighing the following raw materials in parts by weight: 30 parts of aluminum ash, 20 parts of slag powder, 30 parts of fly ash composite ultrafine powder, 2.5 parts of desulfurized gypsum powder and 50 parts of aluminum powder; (2) crushing and grinding the aluminum ash; (3) treating desulfurized gypsum powder; (4) uniformly mixing the treated aluminum ash and desulfurized gypsum powder, and grinding and homogenizing the mixture in a pulverizer; (5) adding the slag powder for grinding; and (6) adding the fly ash composite ultrafine powder and the aluminum powder, and grinding until the specific surface area reaches 400m<2>/kg to obtain the cement and concrete expansive agent. According to the method, the aluminum ash is comprehensively treated, through economical, effective, environment-friendly and harmless treatment, useful components in the aluminum ash are recycled, the method has very important practical significance and practical value for improving the economic benefits of enterprises and protecting the ecological environment, and meanwhile, the method has far-reaching significance for the electrolytic aluminum industry in China.
本发明公开了一种利用铝灰制备水泥、混凝土膨胀剂的方法，属于膨胀剂生产技术领域。包括以下步骤：(1)称取下述重量份的原料：铝灰30份、矿渣粉20份、粉煤灰复合超细粉30份、脱硫石膏粉2.5份、铝粉50份；(2)铝灰破碎、粉磨处理；(3)脱硫石膏粉处理；(4)将处理后的铝灰和脱硫石膏粉混匀后放入粉磨机粉磨、均化；(5)再加入矿渣粉进行粉磨；(6)再加入粉煤灰复合超细粉和铝粉进行粉磨至比表面积达到400m2/kg，即得水泥、混凝土膨胀剂。本发明对铝灰进行综合处理，通过经济有效、环保无害化处理，回收利用铝灰中的有用成分，将会对提高企业的经济效益，保护生态环境具有很重要的现实意义和实用价值，同时对我国电解铝工业产生深远的意义。
Method for preparing cement and concrete expansive agent from aluminum ash
The invention discloses a method for preparing a cement and concrete expansive agent from aluminum ash, and belongs to the technical field of expansive agent production. The method comprises the following steps: (1) weighing the following raw materials in parts by weight: 30 parts of aluminum ash, 20 parts of slag powder, 30 parts of fly ash composite ultrafine powder, 2.5 parts of desulfurized gypsum powder and 50 parts of aluminum powder; (2) crushing and grinding the aluminum ash; (3) treating desulfurized gypsum powder; (4) uniformly mixing the treated aluminum ash and desulfurized gypsum powder, and grinding and homogenizing the mixture in a pulverizer; (5) adding the slag powder for grinding; and (6) adding the fly ash composite ultrafine powder and the aluminum powder, and grinding until the specific surface area reaches 400m<2>/kg to obtain the cement and concrete expansive agent. According to the method, the aluminum ash is comprehensively treated, through economical, effective, environment-friendly and harmless treatment, useful components in the aluminum ash are recycled, the method has very important practical significance and practical value for improving the economic benefits of enterprises and protecting the ecological environment, and meanwhile, the method has far-reaching significance for the electrolytic aluminum industry in China.
本发明公开了一种利用铝灰制备水泥、混凝土膨胀剂的方法，属于膨胀剂生产技术领域。包括以下步骤：(1)称取下述重量份的原料：铝灰30份、矿渣粉20份、粉煤灰复合超细粉30份、脱硫石膏粉2.5份、铝粉50份；(2)铝灰破碎、粉磨处理；(3)脱硫石膏粉处理；(4)将处理后的铝灰和脱硫石膏粉混匀后放入粉磨机粉磨、均化；(5)再加入矿渣粉进行粉磨；(6)再加入粉煤灰复合超细粉和铝粉进行粉磨至比表面积达到400m2/kg，即得水泥、混凝土膨胀剂。本发明对铝灰进行综合处理，通过经济有效、环保无害化处理，回收利用铝灰中的有用成分，将会对提高企业的经济效益，保护生态环境具有很重要的现实意义和实用价值，同时对我国电解铝工业产生深远的意义。
Method for preparing cement and concrete expansive agent from aluminum ash
一种利用铝灰制备水泥、混凝土膨胀剂的方法
DONG WENYUAN (Autor:in)
03.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Engineering Index Backfile | 1965
| Europäisches Patentamt | 2025
A Basic Study of Expansive Cement and Expansive Concrete
| NTIS | 1964