Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses composite superfine slag powder and a preparation method thereof. The composite superfine slag powder comprises, by mass, 1-20 parts of iron-ore slag, 20-50 parts of coal ash, 30-80 parts of phosphorous slag, 1-2 parts of sodium carbonate powder, 1-5 parts of white sugar, 5-10 parts of salt and 10-20 parts of quartz powder. The preparation method comprises the steps that a roller press is used for processing coarse powder at first, then a ball grinding mill is used for classifying fine powder, and finally the requirement that the surface area is larger than 650M<2>/kg is met. The composite superfine slag powder is high in grindability and activity, meets the activity requirements at different stages, and is used in cement and concrete for enhancing mixability, tackiness and early strength.
The invention discloses composite superfine slag powder and a preparation method thereof. The composite superfine slag powder comprises, by mass, 1-20 parts of iron-ore slag, 20-50 parts of coal ash, 30-80 parts of phosphorous slag, 1-2 parts of sodium carbonate powder, 1-5 parts of white sugar, 5-10 parts of salt and 10-20 parts of quartz powder. The preparation method comprises the steps that a roller press is used for processing coarse powder at first, then a ball grinding mill is used for classifying fine powder, and finally the requirement that the surface area is larger than 650M<2>/kg is met. The composite superfine slag powder is high in grindability and activity, meets the activity requirements at different stages, and is used in cement and concrete for enhancing mixability, tackiness and early strength.
High-activity superfine slag powder composite admixture and preparation method thereof
| Europäisches Patentamt | 2021
Superfine slag powder grinding aid and preparation method thereof
| Europäisches Patentamt | 2023