Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of admixture based on modification of steel slag mineral powder grinding aid
The invention relates to the field of steel slag mineral powder modification, and particularly discloses a preparation method of an admixture based on modification of a steel slag mineral powder grinding aid. The preparation method comprises the steps: mixing tetraethoxysilane, absolute ethyl alcohol and deionized water to obtain a primary mixture; continuously dropwise adding 1 mL of N,N-dimethylformamide into the primary mixture, and stirring to obtain sol; modifying the sol with graphene, freeze-drying, and taking out to obtain modified silicon dioxide aerogel; mixing the modified silicon dioxide aerogel, a sintering aid and modified talcum powder to form a mixture; and adding the mixture into a solvent, and carrying out ball milling to form slurry. The preparation method disclosed by the invention has the advantage of reducing the influence of the auxiliary agent on the concrete strength.
本申请涉及钢渣矿粉改性领域，具体公开了一种基于钢渣矿粉助磨剂改性的掺合料的制备方法。制备方法为：将正硅酸乙酯、无水乙醇和去离子水混合，得到初混物；继续向初混物中滴加1mL N,N二甲基甲酰胺，搅拌得到溶胶；溶胶经石墨烯改性后，冷冻干燥，取出后得到改性二氧化硅气凝胶；将改性二氧化硅气凝胶、烧结助剂和改性滑石粉混合形成混合料；将混合料加入至溶剂中，球磨形成浆料。本申请的制备方法具有减少助剂对混凝土强度造成影响的优点。
Preparation method of admixture based on modification of steel slag mineral powder grinding aid
The invention relates to the field of steel slag mineral powder modification, and particularly discloses a preparation method of an admixture based on modification of a steel slag mineral powder grinding aid. The preparation method comprises the steps: mixing tetraethoxysilane, absolute ethyl alcohol and deionized water to obtain a primary mixture; continuously dropwise adding 1 mL of N,N-dimethylformamide into the primary mixture, and stirring to obtain sol; modifying the sol with graphene, freeze-drying, and taking out to obtain modified silicon dioxide aerogel; mixing the modified silicon dioxide aerogel, a sintering aid and modified talcum powder to form a mixture; and adding the mixture into a solvent, and carrying out ball milling to form slurry. The preparation method disclosed by the invention has the advantage of reducing the influence of the auxiliary agent on the concrete strength.
本申请涉及钢渣矿粉改性领域，具体公开了一种基于钢渣矿粉助磨剂改性的掺合料的制备方法。制备方法为：将正硅酸乙酯、无水乙醇和去离子水混合，得到初混物；继续向初混物中滴加1mL N,N二甲基甲酰胺，搅拌得到溶胶；溶胶经石墨烯改性后，冷冻干燥，取出后得到改性二氧化硅气凝胶；将改性二氧化硅气凝胶、烧结助剂和改性滑石粉混合形成混合料；将混合料加入至溶剂中，球磨形成浆料。本申请的制备方法具有减少助剂对混凝土强度造成影响的优点。
Preparation method of admixture based on modification of steel slag mineral powder grinding aid
一种基于钢渣矿粉助磨剂改性的掺合料的制备方法
YAN JIANQIANG (Autor:in) / QIAO QI (Autor:in) / WANG CHAO (Autor:in) / GE BIAO (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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